201000022122 has 16 divisors (see below), whose sum is σ = 402049887552. Its totient is φ = 66991700160.

The previous prime is 201000022099. The next prime is 201000022159. The reversal of 201000022122 is 221220000102.

It is a junction number, because it is equal to n+sod(n) for n = 201000022098 and 201000022107.

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, 2024278 + ... + 2121249.

It is an arithmetic number, because the mean of its divisors is an integer number (25128117972).

Almost surely, 2^201000022122 is an apocalyptic number.

201000022122 is an abundant number, since it is smaller than the sum of its proper divisors (201049865430).

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

201000022122 is a wasteful number, since it uses less digits than its factorization.

201000022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4153613.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 201000022122 its reverse (221220000102), we get a palindrome (422220022224).

The spelling of 201000022122 in words is "two hundred one billion, twenty-two thousand, one hundred twenty-two".