20022225131 has 4 divisors (see below), whose sum is σ = 20145061032. Its totient is φ = 19899389232.

The previous prime is 20022225101. The next prime is 20022225143. The reversal of 20022225131 is 13152222002.

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

It is a cyclic number.

It is not a de Polignac number, because 20022225131 - 2²² = 20018030827 is a prime.

It is a super-2 number, since 2×20022225131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20022225101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61417706 + ... + 61418031.

It is an arithmetic number, because the mean of its divisors is an integer number (5036265258).

Almost surely, 2^20022225131 is an apocalyptic number.

20022225131 is a deficient number, since it is larger than the sum of its proper divisors (122835901).

20022225131 is a wasteful number, since it uses less digits than its factorization.

20022225131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122835900.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 20022225131 its reverse (13152222002), we get a palindrome (33174447133).

The spelling of 20022225131 in words is "twenty billion, twenty-two million, two hundred twenty-five thousand, one hundred thirty-one".