20022213137 has 2 divisors, whose sum is σ = 20022213138. Its totient is φ = 20022213136.

The previous prime is 20022213083. The next prime is 20022213149. The reversal of 20022213137 is 73131222002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19687176721 + 335036416 = 140311^2 + 18304^2 .

It is a cyclic number.

It is not a de Polignac number, because 20022213137 - 2¹⁰ = 20022212113 is a prime.

It is not a weakly prime, because it can be changed into another prime (20022233137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011106568 + 10011106569.

It is an arithmetic number, because the mean of its divisors is an integer number (10011106569).

Almost surely, 2^20022213137 is an apocalyptic number.

It is an amenable number.

20022213137 is a deficient number, since it is larger than the sum of its proper divisors (1).

20022213137 is an equidigital number, since it uses as much as digits as its factorization.

20022213137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

Adding to 20022213137 its reverse (73131222002), we get a palindrome (93153435139).

The spelling of 20022213137 in words is "twenty billion, twenty-two million, two hundred thirteen thousand, one hundred thirty-seven".