2122644120 has 128 divisors (see below), whose sum is σ = 6576906240. Its totient is φ = 547637760.

The previous prime is 2122644107. The next prime is 2122644137. The reversal of 2122644120 is 214462212.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 846789 + ... + 849291.

It is an arithmetic number, because the mean of its divisors is an integer number (51382080).

Almost surely, 2^2122644120 is an apocalyptic number.

2122644120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2122644120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3288453120).

2122644120 is an abundant number, since it is smaller than the sum of its proper divisors (4454262120).

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

2122644120 is a wasteful number, since it uses less digits than its factorization.

2122644120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745 (or 2741 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 2122644120 is about 46072.1620938284. The cubic root of 2122644120 is about 1285.1655113409.

The spelling of 2122644120 in words is "two billion, one hundred twenty-two million, six hundred forty-four thousand, one hundred twenty".