201021121122 has 8 divisors (see below), whose sum is σ = 402042242256. Its totient is φ = 67007040372.

The previous prime is 201021121111. The next prime is 201021121141. The reversal of 201021121122 is 221121120102.

It is a sphenic number, since it is the product of 3 distinct primes.

201021121122 is an admirable number.

It is a super-2 number, since 2×201021121122² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16751760088 + ... + 16751760099.

It is an arithmetic number, because the mean of its divisors is an integer number (50255280282).

Almost surely, 2^201021121122 is an apocalyptic number.

201021121122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

201021121122 is a wasteful number, since it uses less digits than its factorization.

201021121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33503520192.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201021121122 its reverse (221121120102), we get a palindrome (422142241224).

The spelling of 201021121122 in words is "two hundred one billion, twenty-one million, one hundred twenty-one thousand, one hundred twenty-two".