222002420 has 12 divisors (see below), whose sum is σ = 466205124. Its totient is φ = 88800960.

The previous prime is 222002393. The next prime is 222002461. The reversal of 222002420 is 24200222.

222002420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 105966436 + 116035984 = 10294^2 + 10772^2 .

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 222002395 and 222002404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5550041 + ... + 5550080.

It is an arithmetic number, because the mean of its divisors is an integer number (38850427).

Almost surely, 2^222002420 is an apocalyptic number.

222002420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222002420 is an abundant number, since it is smaller than the sum of its proper divisors (244202704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222002420 is a wasteful number, since it uses less digits than its factorization.

222002420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11100130 (or 11100128 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 222002420 is about 14899.7456354127. The cubic root of 222002420 is about 605.5070948261.

Adding to 222002420 its reverse (24200222), we get a palindrome (246202642).

The spelling of 222002420 in words is "two hundred twenty-two million, two thousand, four hundred twenty".