12231211042154 has 16 divisors (see below), whose sum is σ = 19760429257800. Its totient is φ = 5644511723520.

The previous prime is 12231211042147. The next prime is 12231211042187. The reversal of 12231211042154 is 45124011213221.

It can be written as a sum of positive squares in 4 ways, for example, as 6798456538225 + 5432754503929 = 2607385^2 + 2330827^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27382679 + ... + 27825770.

Almost surely, 2^{12231211042154} is an apocalyptic number.

12231211042154 is a deficient number, since it is larger than the sum of its proper divisors (7529218215646).

12231211042154 is a wasteful number, since it uses less digits than its factorization.

12231211042154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55216985.

The product of its (nonzero) digits is 3840, while the sum is 29.

Adding to 12231211042154 its reverse (45124011213221), we get a palindrome (57355222255375).

The spelling of 12231211042154 in words is "twelve trillion, two hundred thirty-one billion, two hundred eleven million, forty-two thousand, one hundred fifty-four".