23012222 has 8 divisors (see below), whose sum is σ = 35033736. Its totient is φ = 11334312.

The previous prime is 23012221. The next prime is 23012233. The reversal of 23012222 is 22221032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×23012222² = 1059124722754568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23012197 and 23012206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23012221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85733 + ... + 86000.

It is an arithmetic number, because the mean of its divisors is an integer number (4379217).

Almost surely, 2^23012222 is an apocalyptic number.

23012222 is a deficient number, since it is larger than the sum of its proper divisors (12021514).

23012222 is a wasteful number, since it uses less digits than its factorization.

23012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171802.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 23012222 is about 4797.1055856631. The cubic root of 23012222 is about 284.4370626046.

Adding to 23012222 its reverse (22221032), we get a palindrome (45233254).

The spelling of 23012222 in words is "twenty-three million, twelve thousand, two hundred twenty-two".