1232120122020 has 72 divisors (see below), whose sum is σ = 3738925584576. Its totient is φ = 328433977152.

The previous prime is 1232120121983. The next prime is 1232120122081. The reversal of 1232120122020 is 202210212321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1232120121984 and 1232120122002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 916842 + ... + 1817921.

It is an arithmetic number, because the mean of its divisors is an integer number (51929522008).

Almost surely, 2^{1232120122020} is an apocalyptic number.

1232120122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232120122020 is an abundant number, since it is smaller than the sum of its proper divisors (2506805462556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1232120122020 is a wasteful number, since it uses less digits than its factorization.

1232120122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737281 (or 2737276 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1232120122020 its reverse (202210212321), we get a palindrome (1434330334341).

The spelling of 1232120122020 in words is "one trillion, two hundred thirty-two billion, one hundred twenty million, one hundred twenty-two thousand, twenty".