20122013220013 has 4 divisors (see below), whose sum is σ = 20122501908640. Its totient is φ = 20121524531388.

The previous prime is 20122013219953. The next prime is 20122013220167. The reversal of 20122013220013 is 31002231022102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20122013220013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122013220613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244282545 + ... + 244364902.

It is an arithmetic number, because the mean of its divisors is an integer number (5030625477160).

Almost surely, 2^{20122013220013} is an apocalyptic number.

It is an amenable number.

20122013220013 is a deficient number, since it is larger than the sum of its proper divisors (488688627).

20122013220013 is an equidigital number, since it uses as much as digits as its factorization.

20122013220013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488688626.

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

Adding to 20122013220013 its reverse (31002231022102), we get a palindrome (51124244242115).

The spelling of 20122013220013 in words is "twenty trillion, one hundred twenty-two billion, thirteen million, two hundred twenty thousand, thirteen".