201131236122 has 16 divisors (see below), whose sum is σ = 402791078592. Its totient is φ = 66955644320.

The previous prime is 201131236079. The next prime is 201131236133. The reversal of 201131236122 is 221632131102.

It is a junction number, because it is equal to n+sod(n) for n = 201131236092 and 201131236101.

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, 22020318 + ... + 22029449.

It is an arithmetic number, because the mean of its divisors is an integer number (25174442412).

Almost surely, 2^201131236122 is an apocalyptic number.

201131236122 is an abundant number, since it is smaller than the sum of its proper divisors (201659842470).

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

201131236122 is a wasteful number, since it uses less digits than its factorization.

201131236122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44050533.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 201131236122 its reverse (221632131102), we get a palindrome (422763367224).

The spelling of 201131236122 in words is "two hundred one billion, one hundred thirty-one million, two hundred thirty-six thousand, one hundred twenty-two".