992255121 has 48 divisors (see below), whose sum is σ = 1757089152. Its totient is φ = 530956800.

The previous prime is 992255119. The next prime is 992255129. The reversal of 992255121 is 121552299.

It is a happy number.

It is not a de Polignac number, because 992255121 - 2¹ = 992255119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (992255129) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12841 + ... + 46361.

It is an arithmetic number, because the mean of its divisors is an integer number (36606024).

Almost surely, 2^992255121 is an apocalyptic number.

It is an amenable number.

992255121 is a deficient number, since it is larger than the sum of its proper divisors (764834031).

992255121 is a wasteful number, since it uses less digits than its factorization.

992255121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33574 (or 33571 counting only the distinct ones).

The product of its digits is 16200, while the sum is 36.

The square root of 992255121 is about 31500.0812856094. The cubic root of 992255121 is about 997.4116800465.

The spelling of 992255121 in words is "nine hundred ninety-two million, two hundred fifty-five thousand, one hundred twenty-one".