12010022421 has 16 divisors (see below), whose sum is σ = 16503674880. Its totient is φ = 7764205680.

The previous prime is 12010022399. The next prime is 12010022429. The reversal of 12010022421 is 12422001021.

It is not a de Polignac number, because 12010022421 - 2³¹ = 9862538773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12010022421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010022429) 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, 316965 + ... + 352826.

It is an arithmetic number, because the mean of its divisors is an integer number (1031479680).

Almost surely, 2^12010022421 is an apocalyptic number.

It is an amenable number.

12010022421 is a deficient number, since it is larger than the sum of its proper divisors (4493652459).

12010022421 is a wasteful number, since it uses less digits than its factorization.

12010022421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669976.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12010022421 its reverse (12422001021), we get a palindrome (24432023442).

The spelling of 12010022421 in words is "twelve billion, ten million, twenty-two thousand, four hundred twenty-one".