202122110022012 has 36 divisors (see below), whose sum is σ = 533133681509520. Its totient is φ = 64444730731392.

The previous prime is 202122110022011. The next prime is 202122110022017. The reversal of 202122110022012 is 210220011221202.

It is a happy number.

202122110022012 is a `hidden beast` number, since 20 + 212 + 211 + 0 + 0 + 220 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×202122110022012² (a number of 29 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202122110022011) 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, 122054413437 + ... + 122054415092.

It is an arithmetic number, because the mean of its divisors is an integer number (14809268930820).

Almost surely, 2^{202122110022012} is an apocalyptic number.

It is an amenable number.

202122110022012 is an abundant number, since it is smaller than the sum of its proper divisors (331011571487508).

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

202122110022012 is a wasteful number, since it uses less digits than its factorization.

202122110022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244108828562 (or 244108828557 counting only the distinct ones).

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

Adding to 202122110022012 its reverse (210220011221202), we get a palindrome (412342121243214).

The spelling of 202122110022012 in words is "two hundred two trillion, one hundred twenty-two billion, one hundred ten million, twenty-two thousand, twelve".