201000222021122 has 16 divisors (see below), whose sum is σ = 301679212665600. Its totient is φ = 100440492317520.

The previous prime is 201000222021043. The next prime is 201000222021139. The reversal of 201000222021122 is 221120222000102.

It is a happy number.

It is a super-2 number, since 2×201000222021122² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201000222021122.

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, 49444079 + ... + 53354637.

It is an arithmetic number, because the mean of its divisors is an integer number (18854950791600).

Almost surely, 2^{201000222021122} is an apocalyptic number.

201000222021122 is a deficient number, since it is larger than the sum of its proper divisors (100678990644478).

201000222021122 is a wasteful number, since it uses less digits than its factorization.

201000222021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3925801.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 201000222021122 its reverse (221120222000102), we get a palindrome (422120444021224).

The spelling of 201000222021122 in words is "two hundred one trillion, two hundred twenty-two million, twenty-one thousand, one hundred twenty-two".