20022253511 has 16 divisors (see below), whose sum is σ = 21997332000. Its totient is φ = 18111289728.

The previous prime is 20022253507. The next prime is 20022253543. The reversal of 20022253511 is 11535222002.

It is a cyclic number.

It is not a de Polignac number, because 20022253511 - 2² = 20022253507 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 (20022253501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201965 + ... + 284313.

It is an arithmetic number, because the mean of its divisors is an integer number (1374833250).

Almost surely, 2^20022253511 is an apocalyptic number.

20022253511 is a deficient number, since it is larger than the sum of its proper divisors (1975078489).

20022253511 is a wasteful number, since it uses less digits than its factorization.

20022253511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82738.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 20022253511 its reverse (11535222002), we get a palindrome (31557475513).

The spelling of 20022253511 in words is "twenty billion, twenty-two million, two hundred fifty-three thousand, five hundred eleven".