402121002210131 has 8 divisors (see below), whose sum is σ = 406735644652560. Its totient is φ = 397508502633088.

The previous prime is 402121002210113. The next prime is 402121002210133. The reversal of 402121002210131 is 131012200121204.

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

It is a cyclic number.

It is not a de Polignac number, because 402121002210131 - 2³⁸ = 401846124303187 is a prime.

It is a super-2 number, since 2×402121002210131² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402121002210133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535338881 + ... + 536089506.

It is an arithmetic number, because the mean of its divisors is an integer number (50841955581570).

Almost surely, 2^{402121002210131} is an apocalyptic number.

402121002210131 is a deficient number, since it is larger than the sum of its proper divisors (4614642442429).

402121002210131 is a wasteful number, since it uses less digits than its factorization.

402121002210131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071432693.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 402121002210131 its reverse (131012200121204), we get a palindrome (533133202331335).

The spelling of 402121002210131 in words is "four hundred two trillion, one hundred twenty-one billion, two million, two hundred ten thousand, one hundred thirty-one".