231401022202 has 32 divisors (see below), whose sum is σ = 397860606720. Its totient is φ = 98878993920.

The previous prime is 231401022191. The next prime is 231401022257. The reversal of 231401022202 is 202220104132.

It is a super-2 number, since 2×231401022202² (a number of 24 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 231401022202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7019803 + ... + 7052689.

It is an arithmetic number, because the mean of its divisors is an integer number (12433143960).

Almost surely, 2^231401022202 is an apocalyptic number.

231401022202 is a deficient number, since it is larger than the sum of its proper divisors (166459584518).

231401022202 is a wasteful number, since it uses less digits than its factorization.

231401022202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34366.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 231401022202 its reverse (202220104132), we get a palindrome (433621126334).

The spelling of 231401022202 in words is "two hundred thirty-one billion, four hundred one million, twenty-two thousand, two hundred two".