201201212120022 has 32 divisors (see below), whose sum is σ = 447209362828800. Its totient is φ = 67052736989064.

The previous prime is 201201212119961. The next prime is 201201212120023. The reversal of 201201212120022 is 220021212102102.

It is a happy number.

201201212120022 is a `hidden beast` number, since 201 + 201 + 21 + 21 + 200 + 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 = 201201212119977 and 201201212120004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201201212120023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397903818 + ... + 398409149.

It is an arithmetic number, because the mean of its divisors is an integer number (13975292588400).

Almost surely, 2^{201201212120022} is an apocalyptic number.

201201212120022 is an abundant number, since it is smaller than the sum of its proper divisors (246008150708778).

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

201201212120022 is a wasteful number, since it uses less digits than its factorization.

201201212120022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796317657 (or 796317651 counting only the distinct ones).

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

Adding to 201201212120022 its reverse (220021212102102), we get a palindrome (421222424222124).

The spelling of 201201212120022 in words is "two hundred one trillion, two hundred one billion, two hundred twelve million, one hundred twenty thousand, twenty-two".