201231200122 has 8 divisors (see below), whose sum is σ = 314970574176. Its totient is φ = 96241008732.

The previous prime is 201231200119. The next prime is 201231200161. The reversal of 201231200122 is 221002132102.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 201231200096 and 201231200105.

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, 2187295608 + ... + 2187295699.

It is an arithmetic number, because the mean of its divisors is an integer number (39371321772).

Almost surely, 2^201231200122 is an apocalyptic number.

201231200122 is a deficient number, since it is larger than the sum of its proper divisors (113739374054).

201231200122 is a wasteful number, since it uses less digits than its factorization.

201231200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4374591332.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 201231200122 its reverse (221002132102), we get a palindrome (422233332224).

The spelling of 201231200122 in words is "two hundred one billion, two hundred thirty-one million, two hundred thousand, one hundred twenty-two".