2192721124 has 24 divisors (see below), whose sum is σ = 4233146400. Its totient is φ = 985490880.

The previous prime is 2192721103. The next prime is 2192721133. The reversal of 2192721124 is 4211272912.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276054 + ... + 283885.

It is an arithmetic number, because the mean of its divisors is an integer number (176381100).

Almost surely, 2^2192721124 is an apocalyptic number.

It is an amenable number.

2192721124 is a deficient number, since it is larger than the sum of its proper divisors (2040425276).

2192721124 is a wasteful number, since it uses less digits than its factorization.

2192721124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560043 (or 560041 counting only the distinct ones).

The product of its digits is 4032, while the sum is 31.

The square root of 2192721124 is about 46826.5002322403. The cubic root of 2192721124 is about 1299.1554917446.

The spelling of 2192721124 in words is "two billion, one hundred ninety-two million, seven hundred twenty-one thousand, one hundred twenty-four".