2120104899364 has 27 divisors (see below), whose sum is σ = 3762081458163. Its totient is φ = 1045426347072.

The previous prime is 2120104899361. The next prime is 2120104899373. The reversal of 2120104899364 is 4639984010212.

It is a happy number.

The square root of 2120104899364 is 1456058.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 265387764964 + 1854717134400 = 515158^2 + 1361880^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120104899361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 212579482 + ... + 212589454.

Almost surely, 2^{2120104899364} is an apocalyptic number.

2120104899364 is the 1456058-th square number.

It is an amenable number.

2120104899364 is a deficient number, since it is larger than the sum of its proper divisors (1641976558799).

2120104899364 is an frugal number, since it uses more digits than its factorization.

2120104899364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20096 (or 10048 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

Multiplying 2120104899364 by its sum of digits (49), we get a square (103885140068836 = 10192406²).

The spelling of 2120104899364 in words is "two trillion, one hundred twenty billion, one hundred four million, eight hundred ninety-nine thousand, three hundred sixty-four".