21430024122 has 32 divisors (see below), whose sum is σ = 47230400448. Its totient is φ = 6440507136.

The previous prime is 21430024097. The next prime is 21430024159. The reversal of 21430024122 is 22142003412.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3191343 + ... + 3198050.

It is an arithmetic number, because the mean of its divisors is an integer number (1475950014).

Almost surely, 2^21430024122 is an apocalyptic number.

21430024122 is an abundant number, since it is smaller than the sum of its proper divisors (25800376326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21430024122 is a wasteful number, since it uses less digits than its factorization.

21430024122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6389454.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 21430024122 its reverse (22142003412), we get a palindrome (43572027534).

The spelling of 21430024122 in words is "twenty-one billion, four hundred thirty million, twenty-four thousand, one hundred twenty-two".