21320122401139 has 8 divisors (see below), whose sum is σ = 21409654399760. Its totient is φ = 21230599219200.

The previous prime is 21320122401107. The next prime is 21320122401143. The reversal of 21320122401139 is 93110422102312.

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

It is a cyclic number.

It is not a de Polignac number, because 21320122401139 - 2⁵ = 21320122401107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21320122401139.

It is not an unprimeable number, because it can be changed into a prime (21320122701139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2664832 + ... + 7052770.

It is an arithmetic number, because the mean of its divisors is an integer number (2676206799970).

Almost surely, 2^{21320122401139} is an apocalyptic number.

21320122401139 is a deficient number, since it is larger than the sum of its proper divisors (89531998621).

21320122401139 is a wasteful number, since it uses less digits than its factorization.

21320122401139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4408341.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 21320122401139 in words is "twenty-one trillion, three hundred twenty billion, one hundred twenty-two million, four hundred one thousand, one hundred thirty-nine".