222012112021 has 24 divisors (see below), whose sum is σ = 263410224000. Its totient is φ = 186535125504.

The previous prime is 222012111991. The next prime is 222012112031. The reversal of 222012112021 is 120211210222.

It is a happy number.

It is not a de Polignac number, because 222012112021 - 2⁵ = 222012111989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222012111986 and 222012112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222012112031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 331765 + ... + 744373.

It is an arithmetic number, because the mean of its divisors is an integer number (10975426000).

Almost surely, 2^222012112021 is an apocalyptic number.

It is an amenable number.

222012112021 is a deficient number, since it is larger than the sum of its proper divisors (41398111979).

222012112021 is a wasteful number, since it uses less digits than its factorization.

222012112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412841 (or 412834 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222012112021 its reverse (120211210222), we get a palindrome (342223322243).

The spelling of 222012112021 in words is "two hundred twenty-two billion, twelve million, one hundred twelve thousand, twenty-one".