3642215021231 has 16 divisors (see below), whose sum is σ = 3749118978528. Its totient is φ = 3537111177600.

The previous prime is 3642215021219. The next prime is 3642215021273. The reversal of 3642215021231 is 1321205122463.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3642215021231 is a prime.

It is a super-2 number, since 2×3642215021231² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3642215021131) 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, 417401 + ... + 2731053.

It is an arithmetic number, because the mean of its divisors is an integer number (234319936158).

Almost surely, 2^{3642215021231} is an apocalyptic number.

3642215021231 is a deficient number, since it is larger than the sum of its proper divisors (106903957297).

3642215021231 is a wasteful number, since it uses less digits than its factorization.

3642215021231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2314042.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 3642215021231 in words is "three trillion, six hundred forty-two billion, two hundred fifteen million, twenty-one thousand, two hundred thirty-one".