20122012231 has 16 divisors (see below), whose sum is σ = 21168506304. Its totient is φ = 19090266624.

The previous prime is 20122012217. The next prime is 20122012241. The reversal of 20122012231 is 13221022102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20122012231 - 2¹⁵ = 20121979463 is a prime.

It is a super-2 number, since 2×20122012231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122012201) 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 15 ways as a sum of consecutive naturals, for example, 2136625 + ... + 2146021.

It is an arithmetic number, because the mean of its divisors is an integer number (1323031644).

Almost surely, 2^20122012231 is an apocalyptic number.

20122012231 is a deficient number, since it is larger than the sum of its proper divisors (1046494073).

20122012231 is a wasteful number, since it uses less digits than its factorization.

20122012231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10170.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20122012231 its reverse (13221022102), we get a palindrome (33343034333).

The spelling of 20122012231 in words is "twenty billion, one hundred twenty-two million, twelve thousand, two hundred thirty-one".