2291122250 has 16 divisors (see below), whose sum is σ = 4288981320. Its totient is φ = 916448800.

The previous prime is 2291122247. The next prime is 2291122261. The reversal of 2291122250 is 522211922.

It can be written as a sum of positive squares in 4 ways, for example, as 1152127249 + 1138995001 = 33943^2 + 33749^2 .

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, 4581995 + ... + 4582494.

Almost surely, 2^2291122250 is an apocalyptic number.

2291122250 is a deficient number, since it is larger than the sum of its proper divisors (1997859070).

2291122250 is an equidigital number, since it uses as much as digits as its factorization.

2291122250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9164506 (or 9164496 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 2291122250 is about 47865.6688034336. The cubic root of 2291122250 is about 1318.3055718859.

The spelling of 2291122250 in words is "two billion, two hundred ninety-one million, one hundred twenty-two thousand, two hundred fifty".