21430012022 has 16 divisors (see below), whose sum is σ = 32276385792. Its totient is φ = 10671299880.

The previous prime is 21430012013. The next prime is 21430012027. The reversal of 21430012022 is 22021003412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21430012027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509063 + ... + 549549.

It is an arithmetic number, because the mean of its divisors is an integer number (2017274112).

Almost surely, 2^21430012022 is an apocalyptic number.

21430012022 is a deficient number, since it is larger than the sum of its proper divisors (10846373770).

21430012022 is a wasteful number, since it uses less digits than its factorization.

21430012022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41563.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 21430012022 its reverse (22021003412), we get a palindrome (43451015434).

The spelling of 21430012022 in words is "twenty-one billion, four hundred thirty million, twelve thousand, twenty-two".