2120138184552 has 64 divisors (see below), whose sum is σ = 5614751623680. Its totient is φ = 664830738432.

The previous prime is 2120138184497. The next prime is 2120138184553. The reversal of 2120138184552 is 2554818310212.

It is a super-2 number, since 2×2120138184552² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2120138184553) 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, 338073 + ... + 2086760.

It is an arithmetic number, because the mean of its divisors is an integer number (87730494120).

Almost surely, 2^{2120138184552} is an apocalyptic number.

It is an amenable number.

2120138184552 is an abundant number, since it is smaller than the sum of its proper divisors (3494613439128).

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

2120138184552 is a wasteful number, since it uses less digits than its factorization.

2120138184552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2427002 (or 2426998 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 42.

The spelling of 2120138184552 in words is "two trillion, one hundred twenty billion, one hundred thirty-eight million, one hundred eighty-four thousand, five hundred fifty-two".