21223202011013 has 4 divisors (see below), whose sum is σ = 21232108099008. Its totient is φ = 21214295923020.

The previous prime is 21223202010971. The next prime is 21223202011027. The reversal of 21223202011013 is 31011020232212.

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 not a de Polignac number, because 21223202011013 - 2²⁴ = 21223185233797 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 (21223202011073) 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, 4453040423 + ... + 4453045188.

It is an arithmetic number, because the mean of its divisors is an integer number (5308027024752).

Almost surely, 2^{21223202011013} is an apocalyptic number.

It is an amenable number.

21223202011013 is a deficient number, since it is larger than the sum of its proper divisors (8906087995).

21223202011013 is an equidigital number, since it uses as much as digits as its factorization.

21223202011013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8906087994.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21223202011013 its reverse (31011020232212), we get a palindrome (52234222243225).

The spelling of 21223202011013 in words is "twenty-one trillion, two hundred twenty-three billion, two hundred two million, eleven thousand, thirteen".