222010021021 has 4 divisors (see below), whose sum is σ = 223172377344. Its totient is φ = 220847664700.

The previous prime is 222010020997. The next prime is 222010021039. The reversal of 222010021021 is 120120010222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222010021021 - 2⁵ = 222010020989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222010020992 and 222010021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223010021021) 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, 581177875 + ... + 581178256.

It is an arithmetic number, because the mean of its divisors is an integer number (55793094336).

Almost surely, 2^222010021021 is an apocalyptic number.

It is an amenable number.

222010021021 is a deficient number, since it is larger than the sum of its proper divisors (1162356323).

222010021021 is a wasteful number, since it uses less digits than its factorization.

222010021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162356322.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 222010021021 its reverse (120120010222), we get a palindrome (342130031243).

The spelling of 222010021021 in words is "two hundred twenty-two billion, ten million, twenty-one thousand, twenty-one".