2200641921 has 27 divisors (see below), whose sum is σ = 3358891809. Its totient is φ = 1388190312.

The previous prime is 2200641901. The next prime is 2200641923. The reversal of 2200641921 is 1291460022.

The square root of 2200641921 is 46911.

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

2200641921 is a `hidden beast` number, since 220 + 0 + 6 + 419 + 21 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-2200641921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2200641923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2673516 + ... + 2674338.

Almost surely, 2^2200641921 is an apocalyptic number.

2200641921 is the 46911-st square number.

2200641921 is the 23456-th centered octagonal number.

It is an amenable number.

2200641921 is a deficient number, since it is larger than the sum of its proper divisors (1158249888).

2200641921 is an frugal number, since it uses more digits than its factorization.

2200641921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690 (or 845 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The cubic root of 2200641921 is about 1300.7179310597.

The spelling of 2200641921 in words is "two billion, two hundred million, six hundred forty-one thousand, nine hundred twenty-one".