1000131222201 has 16 divisors (see below), whose sum is σ = 1441630593600. Its totient is φ = 614589882048.

The previous prime is 1000131222187. The next prime is 1000131222257. The reversal of 1000131222201 is 1022221310001.

It is not a de Polignac number, because 1000131222201 - 2²⁵ = 1000097667769 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1000131222281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237108186 + ... + 237112403.

It is an arithmetic number, because the mean of its divisors is an integer number (90101912100).

Almost surely, 2^{1000131222201} is an apocalyptic number.

It is an amenable number.

1000131222201 is a deficient number, since it is larger than the sum of its proper divisors (441499371399).

1000131222201 is a wasteful number, since it uses less digits than its factorization.

1000131222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474220648.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1000131222201 its reverse (1022221310001), we get a palindrome (2022352532202).

The spelling of 1000131222201 in words is "one trillion, one hundred thirty-one million, two hundred twenty-two thousand, two hundred one".