400131202214212 has 48 divisors (see below), whose sum is σ = 801070750771200. Its totient is φ = 171311613271200.

The previous prime is 400131202214201. The next prime is 400131202214213. The reversal of 400131202214212 is 212412202131004.

It is a super-2 number, since 2×400131202214212² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (400131202214213) 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, 329281387 + ... + 330494317.

It is an arithmetic number, because the mean of its divisors is an integer number (16688973974400).

Almost surely, 2^{400131202214212} is an apocalyptic number.

It is an amenable number.

400131202214212 is an abundant number, since it is smaller than the sum of its proper divisors (400939548556988).

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

400131202214212 is a wasteful number, since it uses less digits than its factorization.

400131202214212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224832 (or 1224830 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 400131202214212 its reverse (212412202131004), we get a palindrome (612543404345216).

The spelling of 400131202214212 in words is "four hundred trillion, one hundred thirty-one billion, two hundred two million, two hundred fourteen thousand, two hundred twelve".