2120261512170 has 16 divisors (see below), whose sum is σ = 5088627629280. Its totient is φ = 565403069904.

The previous prime is 2120261512121. The next prime is 2120261512189. The reversal of 2120261512170 is 712151620212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 70675383739 = 2120261512170 / (2 + 1 + 2 + 0 + 2 + 6 + 1 + 5 + 1 + 2 + 1 + 7 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35337691840 + ... + 35337691899.

It is an arithmetic number, because the mean of its divisors is an integer number (318039226830).

Almost surely, 2^{2120261512170} is an apocalyptic number.

2120261512170 is an abundant number, since it is smaller than the sum of its proper divisors (2968366117110).

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

2120261512170 is a wasteful number, since it uses less digits than its factorization.

2120261512170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70675383749.

The product of its (nonzero) digits is 3360, while the sum is 30.

The spelling of 2120261512170 in words is "two trillion, one hundred twenty billion, two hundred sixty-one million, five hundred twelve thousand, one hundred seventy".