21339179980701 has 64 divisors (see below), whose sum is σ = 32222384762880. Its totient is φ = 12447505405440.

The previous prime is 21339179980691. The next prime is 21339179980739. The reversal of 21339179980701 is 10708997193312.

It is not a de Polignac number, because 21339179980701 - 2⁵ = 21339179980669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21339179980301) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 115483881 + ... + 115668513.

It is an arithmetic number, because the mean of its divisors is an integer number (503474761920).

Almost surely, 2^{21339179980701} is an apocalyptic number.

It is an amenable number.

21339179980701 is a deficient number, since it is larger than the sum of its proper divisors (10883204782179).

21339179980701 is a wasteful number, since it uses less digits than its factorization.

21339179980701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185706.

The product of its (nonzero) digits is 5143824, while the sum is 60.

The spelling of 21339179980701 in words is "twenty-one trillion, three hundred thirty-nine billion, one hundred seventy-nine million, nine hundred eighty thousand, seven hundred one".