22220202012021 has 48 divisors (see below), whose sum is σ = 35007318528000. Its totient is φ = 13498941620736.

The previous prime is 22220202012017. The next prime is 22220202012023. The reversal of 22220202012021 is 12021020202222.

22220202012021 is a `hidden beast` number, since 22 + 220 + 20 + 201 + 202 + 1 = 666.

It is not a de Polignac number, because 22220202012021 - 2² = 22220202012017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22220202011985 and 22220202012003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220202012023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65483805 + ... + 65822253.

It is an arithmetic number, because the mean of its divisors is an integer number (729319136000).

Almost surely, 2^{22220202012021} is an apocalyptic number.

It is an amenable number.

22220202012021 is a deficient number, since it is larger than the sum of its proper divisors (12787116515979).

22220202012021 is a wasteful number, since it uses less digits than its factorization.

22220202012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345650 (or 345647 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22220202012021 its reverse (12021020202222), we get a palindrome (34241222214243).

The spelling of 22220202012021 in words is "twenty-two trillion, two hundred twenty billion, two hundred two million, twelve thousand, twenty-one".