201121022122122 has 16 divisors (see below), whose sum is σ = 404905898843712. Its totient is φ = 66596364940800.

The previous prime is 201121022122093. The next prime is 201121022122127. The reversal of 201121022122122 is 221221220121102.

It is a super-3 number, since 3×201121022122122³ (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (201121022122127) 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, 110993940663 + ... + 110993942474.

It is an arithmetic number, because the mean of its divisors is an integer number (25306618677732).

Almost surely, 2^{201121022122122} is an apocalyptic number.

201121022122122 is an abundant number, since it is smaller than the sum of its proper divisors (203784876721590).

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

201121022122122 is a wasteful number, since it uses less digits than its factorization.

201121022122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221987883293.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 201121022122122 its reverse (221221220121102), we get a palindrome (422342242243224).

The spelling of 201121022122122 in words is "two hundred one trillion, one hundred twenty-one billion, twenty-two million, one hundred twenty-two thousand, one hundred twenty-two".