2122138320 has 40 divisors (see below), whose sum is σ = 6578629536. Its totient is φ = 565903488.

The previous prime is 2122138303. The next prime is 2122138327. The reversal of 2122138320 is 238312212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122138327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4420882 + ... + 4421361.

Almost surely, 2^2122138320 is an apocalyptic number.

2122138320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122138320 is an abundant number, since it is smaller than the sum of its proper divisors (4456491216).

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

2122138320 is a wasteful number, since it uses less digits than its factorization.

2122138320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8842259 (or 8842253 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 2122138320 is about 46066.6725518568. The cubic root of 2122138320 is about 1285.0634235175.

The spelling of 2122138320 in words is "two billion, one hundred twenty-two million, one hundred thirty-eight thousand, three hundred twenty".