2120000195520 has 168 divisors, whose sum is σ = 7561988629104. Its totient is φ = 565333364736.

The previous prime is 2120000195471. The next prime is 2120000195531. The reversal of 2120000195520 is 255910000212.

2120000195520 is a `hidden beast` number, since 2 + 120 + 0 + 0 + 0 + 19 + 5 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13553929 + ... + 13709448.

It is an arithmetic number, because the mean of its divisors is an integer number (45011837078).

Almost surely, 2^{2120000195520} is an apocalyptic number.

2120000195520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120000195520 is an abundant number, since it is smaller than the sum of its proper divisors (5441988433584).

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

2120000195520 is an equidigital number, since it uses as much as digits as its factorization.

2120000195520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27263409 (or 27263387 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

Adding to 2120000195520 its reverse (255910000212), we get a palindrome (2375910195732).

The spelling of 2120000195520 in words is "two trillion, one hundred twenty billion, one hundred ninety-five thousand, five hundred twenty".