202021011221022 has 24 divisors (see below), whose sum is σ = 500242503976176. Its totient is φ = 57720288920256.

The previous prime is 202021011220999. The next prime is 202021011221027. The reversal of 202021011221022 is 220122110120202.

It is a happy number.

202021011221022 is a `hidden beast` number, since 202 + 0 + 210 + 11 + 221 + 0 + 22 = 666.

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 = 202021011220986 and 202021011221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202021011221027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 801670679323 + ... + 801670679574.

It is an arithmetic number, because the mean of its divisors is an integer number (20843437665674).

Almost surely, 2^{202021011221022} is an apocalyptic number.

202021011221022 is an abundant number, since it is smaller than the sum of its proper divisors (298221492755154).

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

202021011221022 is a wasteful number, since it uses less digits than its factorization.

202021011221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603341358912 (or 1603341358909 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202021011221022 its reverse (220122110120202), we get a palindrome (422143121341224).

The spelling of 202021011221022 in words is "two hundred two trillion, twenty-one billion, eleven million, two hundred twenty-one thousand, twenty-two".