22021230320131 has 4 divisors (see below), whose sum is σ = 25167120365872. Its totient is φ = 18875340274392.

The previous prime is 22021230320101. The next prime is 22021230320143. The reversal of 22021230320131 is 13102303212022.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22021230320131 - 2⁷ = 22021230320003 is a prime.

It is a super-2 number, since 2×22021230320131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22021230320101) 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, 1572945022860 + ... + 1572945022873.

It is an arithmetic number, because the mean of its divisors is an integer number (6291780091468).

Almost surely, 2^{22021230320131} is an apocalyptic number.

22021230320131 is a deficient number, since it is larger than the sum of its proper divisors (3145890045741).

22021230320131 is an equidigital number, since it uses as much as digits as its factorization.

22021230320131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3145890045740.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 22021230320131 its reverse (13102303212022), we get a palindrome (35123533532153).

The spelling of 22021230320131 in words is "twenty-two trillion, twenty-one billion, two hundred thirty million, three hundred twenty thousand, one hundred thirty-one".