2123240022 has 24 divisors (see below), whose sum is σ = 4712558760. Its totient is φ = 690484320.

The previous prime is 2123239969. The next prime is 2123240023. The reversal of 2123240022 is 2200423212.

2123240022 is a `hidden beast` number, since 212 + 32 + 400 + 22 = 666.

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 = 2123239977 and 2123240004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123240023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1437772 + ... + 1439247.

It is an arithmetic number, because the mean of its divisors is an integer number (196356615).

Almost surely, 2^2123240022 is an apocalyptic number.

2123240022 is an abundant number, since it is smaller than the sum of its proper divisors (2589318738).

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

2123240022 is a wasteful number, since it uses less digits than its factorization.

2123240022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2877068 (or 2877065 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2123240022 is about 46078.6286905329. The cubic root of 2123240022 is about 1285.2857640385.

Adding to 2123240022 its reverse (2200423212), we get a palindrome (4323663234).

The spelling of 2123240022 in words is "two billion, one hundred twenty-three million, two hundred forty thousand, twenty-two".