2109322251 has 6 divisors (see below), whose sum is σ = 3046798820. Its totient is φ = 1406214828.

The previous prime is 2109322219. The next prime is 2109322291. The reversal of 2109322251 is 1522239012.

It is a happy number.

It is not a de Polignac number, because 2109322251 - 2⁵ = 2109322219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2109322291) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117184561 + ... + 117184578.

Almost surely, 2^2109322251 is an apocalyptic number.

2109322251 is a deficient number, since it is larger than the sum of its proper divisors (937476569).

2109322251 is a wasteful number, since it uses less digits than its factorization.

2109322251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234369145 (or 234369142 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2109322251 is about 45927.3584152191. The cubic root of 2109322251 is about 1282.4712696048.

The spelling of 2109322251 in words is "two billion, one hundred nine million, three hundred twenty-two thousand, two hundred fifty-one".