202122012012 has 24 divisors (see below), whose sum is σ = 477300175296. Its totient is φ = 66562268688.

The previous prime is 202122011981. The next prime is 202122012013. The reversal of 202122012012 is 210210221202.

It is a junction number, because it is equal to n+sod(n) for n = 202122011982 and 202122012000.

It is not an unprimeable number, because it can be changed into a prime (202122012013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101465878 + ... + 101467869.

It is an arithmetic number, because the mean of its divisors is an integer number (19887507304).

Almost surely, 2^202122012012 is an apocalyptic number.

It is an amenable number.

202122012012 is an abundant number, since it is smaller than the sum of its proper divisors (275178163284).

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

202122012012 is a wasteful number, since it uses less digits than its factorization.

202122012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202933837 (or 202933835 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 202122012012 its reverse (210210221202), we get a palindrome (412332233214).

The spelling of 202122012012 in words is "two hundred two billion, one hundred twenty-two million, twelve thousand, twelve".