2102212202022 has 40 divisors (see below), whose sum is σ = 4825403091432. Its totient is φ = 683646242400.

The previous prime is 2102212202021. The next prime is 2102212202039. The reversal of 2102212202022 is 2202022122012.

2102212202022 is a `hidden beast` number, since 21 + 0 + 221 + 220 + 202 + 2 = 666.

It is a super-2 number, since 2×2102212202022² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2102212201986 and 2102212202004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102212202021) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 158244804 + ... + 158258087.

Almost surely, 2^{2102212202022} is an apocalyptic number.

2102212202022 is an abundant number, since it is smaller than the sum of its proper divisors (2723190889410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2102212202022 is a wasteful number, since it uses less digits than its factorization.

2102212202022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316502946 (or 316502937 counting only the distinct ones).

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

Adding to 2102212202022 its reverse (2202022122012), we get a palindrome (4304234324034).

The spelling of 2102212202022 in words is "two trillion, one hundred two billion, two hundred twelve million, two hundred two thousand, twenty-two".