222101022010021 has 32 divisors (see below), whose sum is σ = 280424686510080. Its totient is φ = 170866258617600.

The previous prime is 222101022010019. The next prime is 222101022010037. The reversal of 222101022010021 is 120010220101222.

It is a happy number.

It is not a de Polignac number, because 222101022010021 - 2¹ = 222101022010019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222101022009977 and 222101022010004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222101022110021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118890016 + ... + 120743686.

It is an arithmetic number, because the mean of its divisors is an integer number (8763271453440).

Almost surely, 2^{222101022010021} is an apocalyptic number.

It is an amenable number.

222101022010021 is a deficient number, since it is larger than the sum of its proper divisors (58323664500059).

222101022010021 is a wasteful number, since it uses less digits than its factorization.

222101022010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873465.

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

Adding to 222101022010021 its reverse (120010220101222), we get a palindrome (342111242111243).

The spelling of 222101022010021 in words is "two hundred twenty-two trillion, one hundred one billion, twenty-two million, ten thousand, twenty-one".