20022231135 has 32 divisors (see below), whose sum is σ = 32166512640. Its totient is φ = 10634972288.

The previous prime is 20022231067. The next prime is 20022231143. The reversal of 20022231135 is 53113222002.

It is a cyclic number.

It is not a de Polignac number, because 20022231135 - 2⁷ = 20022231007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3999544 + ... + 4004546.

It is an arithmetic number, because the mean of its divisors is an integer number (1005203520).

Almost surely, 2^20022231135 is an apocalyptic number.

20022231135 is a deficient number, since it is larger than the sum of its proper divisors (12144281505).

20022231135 is a wasteful number, since it uses less digits than its factorization.

20022231135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6047.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 20022231135 its reverse (53113222002), we get a palindrome (73135453137).

The spelling of 20022231135 in words is "twenty billion, twenty-two million, two hundred thirty-one thousand, one hundred thirty-five".