131211222334401 has 16 divisors (see below), whose sum is σ = 191462440040640. Its totient is φ = 79267889176320.

The previous prime is 131211222334391. The next prime is 131211222334421. The reversal of 131211222334401 is 104433222112131.

It is not a de Polignac number, because 131211222334401 - 2⁵ = 131211222334369 is a prime.

It is a super-2 number, since 2×131211222334401² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131211222334421) 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, 6351583356 + ... + 6351604013.

It is an arithmetic number, because the mean of its divisors is an integer number (11966402502540).

Almost surely, 2^{131211222334401} is an apocalyptic number.

131211222334401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131211222334401 is a deficient number, since it is larger than the sum of its proper divisors (60251217706239).

131211222334401 is a wasteful number, since it uses less digits than its factorization.

131211222334401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12703187696.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 131211222334401 its reverse (104433222112131), we get a palindrome (235644444446532).

The spelling of 131211222334401 in words is "one hundred thirty-one trillion, two hundred eleven billion, two hundred twenty-two million, three hundred thirty-four thousand, four hundred one".