20122020231 has 8 divisors (see below), whose sum is σ = 26902466304. Its totient is φ = 13378127160.

The previous prime is 20122020211. The next prime is 20122020263. The reversal of 20122020231 is 13202022102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20122020231 - 2⁹ = 20122019719 is a prime.

It is a super-2 number, since 2×20122020231² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20122020231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122020211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9136965 + ... + 9139166.

It is an arithmetic number, because the mean of its divisors is an integer number (3362808288).

Almost surely, 2^20122020231 is an apocalyptic number.

20122020231 is a deficient number, since it is larger than the sum of its proper divisors (6780446073).

20122020231 is a wasteful number, since it uses less digits than its factorization.

20122020231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18276501.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20122020231 its reverse (13202022102), we get a palindrome (33324042333).

The spelling of 20122020231 in words is "twenty billion, one hundred twenty-two million, twenty thousand, two hundred thirty-one".