122020231231 has 6 divisors (see below), whose sum is σ = 123584348832. Its totient is φ = 120475665180.

The previous prime is 122020231187. The next prime is 122020231253. The reversal of 122020231231 is 132132020221.

It is not a de Polignac number, because 122020231231 - 2¹⁷ = 122020100159 is a prime.

It is a super-2 number, since 2×122020231231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122020231199 and 122020231208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122020231331) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9769455 + ... + 9781936.

It is an arithmetic number, because the mean of its divisors is an integer number (20597391472).

Almost surely, 2^122020231231 is an apocalyptic number.

122020231231 is a deficient number, since it is larger than the sum of its proper divisors (1564117601).

122020231231 is an frugal number, since it uses more digits than its factorization.

122020231231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19551549 (or 19551470 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 122020231231 its reverse (132132020221), we get a palindrome (254152251452).

The spelling of 122020231231 in words is "one hundred twenty-two billion, twenty million, two hundred thirty-one thousand, two hundred thirty-one".