2123231022 has 32 divisors (see below), whose sum is σ = 5147228160. Its totient is φ = 643403160.

The previous prime is 2123230999. The next prime is 2123231023. The reversal of 2123231022 is 2201323212.

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 = 2123230986 and 2123231004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123231023) 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, 1786638 + ... + 1787825.

It is an arithmetic number, because the mean of its divisors is an integer number (160850880).

Almost surely, 2^2123231022 is an apocalyptic number.

2123231022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2123231022 is an abundant number, since it is smaller than the sum of its proper divisors (3023997138).

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

2123231022 is a wasteful number, since it uses less digits than its factorization.

2123231022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3574485 (or 3574479 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2123231022 is about 46078.5310312731. The cubic root of 2123231022 is about 1285.2839480107.

Adding to 2123231022 its reverse (2201323212), we get a palindrome (4324554234).

The spelling of 2123231022 in words is "two billion, one hundred twenty-three million, two hundred thirty-one thousand, twenty-two".