21321100011122 has 32 divisors (see below), whose sum is σ = 32219198928000. Its totient is φ = 10581484003200.

The previous prime is 21321100011121. The next prime is 21321100011173. The reversal of 21321100011122 is 22111000112312.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21321100011122.

It is not an unprimeable number, because it can be changed into a prime (21321100011121) 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, 3708659504 + ... + 3708665252.

It is an arithmetic number, because the mean of its divisors is an integer number (1006849966500).

Almost surely, 2^{21321100011122} is an apocalyptic number.

21321100011122 is a deficient number, since it is larger than the sum of its proper divisors (10898098916878).

21321100011122 is a wasteful number, since it uses less digits than its factorization.

21321100011122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13586.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 21321100011122 its reverse (22111000112312), we get a palindrome (43432100123434).

The spelling of 21321100011122 in words is "twenty-one trillion, three hundred twenty-one billion, one hundred million, eleven thousand, one hundred twenty-two".