12054402021 has 8 divisors (see below), whose sum is σ = 16081881984. Its totient is φ = 8031595040.

The previous prime is 12054402011. The next prime is 12054402029. The reversal of 12054402021 is 12020445021.

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 12054402021 - 2⁷ = 12054401893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12054402029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1162221 + ... + 1172546.

It is an arithmetic number, because the mean of its divisors is an integer number (2010235248).

Almost surely, 2^12054402021 is an apocalyptic number.

It is an amenable number.

12054402021 is a deficient number, since it is larger than the sum of its proper divisors (4027479963).

12054402021 is a wasteful number, since it uses less digits than its factorization.

12054402021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2336491.

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 12054402021 its reverse (12020445021), we get a palindrome (24074847042).

The spelling of 12054402021 in words is "twelve billion, fifty-four million, four hundred two thousand, twenty-one".