21310322122 has 8 divisors (see below), whose sum is σ = 32415701472. Its totient is φ = 10505088300.

The previous prime is 21310322113. The next prime is 21310322149. The reversal of 21310322122 is 22122301312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21310322122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75036204 + ... + 75036487.

It is an arithmetic number, because the mean of its divisors is an integer number (4051962684).

Almost surely, 2^21310322122 is an apocalyptic number.

21310322122 is a deficient number, since it is larger than the sum of its proper divisors (11105379350).

21310322122 is a wasteful number, since it uses less digits than its factorization.

21310322122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150072764.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21310322122 its reverse (22122301312), we get a palindrome (43432623434).

It can be divided in two parts, 213103 and 22122, that added together give a square (235225 = 485²).

The spelling of 21310322122 in words is "twenty-one billion, three hundred ten million, three hundred twenty-two thousand, one hundred twenty-two".