12002211231 has 16 divisors (see below), whose sum is σ = 16286469120. Its totient is φ = 7859918720.

The previous prime is 12002211229. The next prime is 12002211283. The reversal of 12002211231 is 13211220021.

It is a cyclic number.

It is not a de Polignac number, because 12002211231 - 2¹ = 12002211229 is a prime.

It is a super-2 number, since 2×12002211231² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12002211231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002212231) 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, 215986 + ... + 265808.

It is an arithmetic number, because the mean of its divisors is an integer number (1017904320).

Almost surely, 2^12002211231 is an apocalyptic number.

12002211231 is a deficient number, since it is larger than the sum of its proper divisors (4284257889).

12002211231 is a wasteful number, since it uses less digits than its factorization.

12002211231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51246.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12002211231 its reverse (13211220021), we get a palindrome (25213431252).

The spelling of 12002211231 in words is "twelve billion, two million, two hundred eleven thousand, two hundred thirty-one".