201212021022 has 16 divisors (see below), whose sum is σ = 402704885520. Its totient is φ = 67023866432.

The previous prime is 201212021009. The next prime is 201212021033. The reversal of 201212021022 is 220120212102.

It is a junction number, because it is equal to n+sod(n) for n = 201212020992 and 201212021010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11692497 + ... + 11709692.

It is an arithmetic number, because the mean of its divisors is an integer number (25169055345).

Almost surely, 2^201212021022 is an apocalyptic number.

201212021022 is an abundant number, since it is smaller than the sum of its proper divisors (201492864498).

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

201212021022 is a wasteful number, since it uses less digits than its factorization.

201212021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23403627.

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

Adding to 201212021022 its reverse (220120212102), we get a palindrome (421332233124).

The spelling of 201212021022 in words is "two hundred one billion, two hundred twelve million, twenty-one thousand, twenty-two".