222221020112021 has 96 divisors (see below), whose sum is σ = 272426322276864. Its totient is φ = 180571628160000.

The previous prime is 222221020111969. The next prime is 222221020112057. The reversal of 222221020112021 is 120211020122222.

It is not a de Polignac number, because 222221020112021 - 2³⁴ = 222203840242837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222221020111984 and 222221020112002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222221020112321) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3684188555 + ... + 3684248871.

It is an arithmetic number, because the mean of its divisors is an integer number (2837774190384).

Almost surely, 2^{222221020112021} is an apocalyptic number.

It is an amenable number.

222221020112021 is a deficient number, since it is larger than the sum of its proper divisors (50205302164843).

222221020112021 is a wasteful number, since it uses less digits than its factorization.

222221020112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60811 (or 60804 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222221020112021 its reverse (120211020122222), we get a palindrome (342432040234243).

It can be divided in two parts, 2222210201 and 12021, that added together give a palindrome (2222222222).

The spelling of 222221020112021 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, twenty million, one hundred twelve thousand, twenty-one".