3707222922225 has 45 divisors (see below), whose sum is σ = 6867218858907. Its totient is φ = 1977139348560.

The previous prime is 3707222922163. The next prime is 3707222922229. The reversal of 3707222922225 is 5222292227073.

The square root of 3707222922225 is 1925415.

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

3707222922225 is a `hidden beast` number, since 3 + 70 + 72 + 2 + 292 + 2 + 225 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1334600252001 + 2372622670224 = 1155249^2 + 1540332^2 .

It is a tau number, because it is divible by the number of its divisors (45).

It is not a de Polignac number, because 3707222922225 - 2¹⁵ = 3707222889457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (3707222922229) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 86622282 + ... + 86665068.

Almost surely, 2^{3707222922225} is an apocalyptic number.

3707222922225 is the 1925415-th square number.

3707222922225 is the 962708-th centered octagonal number.

It is an amenable number.

3707222922225 is a deficient number, since it is larger than the sum of its proper divisors (3159995936682).

3707222922225 is an frugal number, since it uses more digits than its factorization.

3707222922225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85596 (or 42795 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 3707222922225 in words is "three trillion, seven hundred seven billion, two hundred twenty-two million, nine hundred twenty-two thousand, two hundred twenty-five".