12002215431 has 16 divisors (see below), whose sum is σ = 16861990400. Its totient is φ = 7572797568.

The previous prime is 12002215411. The next prime is 12002215447. The reversal of 12002215431 is 13451220021.

It is not a de Polignac number, because 12002215431 - 2²² = 11998021127 is a prime.

It is a super-2 number, since 2×12002215431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12002215398 and 12002215407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002215411) 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, 46831 + ... + 161856.

It is an arithmetic number, because the mean of its divisors is an integer number (1053874400).

Almost surely, 2^12002215431 is an apocalyptic number.

12002215431 is a deficient number, since it is larger than the sum of its proper divisors (4859774969).

12002215431 is a wasteful number, since it uses less digits than its factorization.

12002215431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209718.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 12002215431 its reverse (13451220021), we get a palindrome (25453435452).

The spelling of 12002215431 in words is "twelve billion, two million, two hundred fifteen thousand, four hundred thirty-one".