2120355525140 has 12 divisors (see below), whose sum is σ = 4452746602836. Its totient is φ = 848142210048.

The previous prime is 2120355525089. The next prime is 2120355525209. The reversal of 2120355525140 is 415255530212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 259302971524 + 1861052553616 = 509218^2 + 1364204^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2120355525140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53008888109 + ... + 53008888148.

It is an arithmetic number, because the mean of its divisors is an integer number (371062216903).

Almost surely, 2^{2120355525140} is an apocalyptic number.

2120355525140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120355525140 is an abundant number, since it is smaller than the sum of its proper divisors (2332391077696).

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

2120355525140 is a wasteful number, since it uses less digits than its factorization.

2120355525140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106017776266 (or 106017776264 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 2120355525140 in words is "two trillion, one hundred twenty billion, three hundred fifty-five million, five hundred twenty-five thousand, one hundred forty".