2150122251 has 16 divisors (see below), whose sum is σ = 3039753600. Its totient is φ = 1348054848.

The previous prime is 2150122237. The next prime is 2150122279. The reversal of 2150122251 is 1522210512.

It is not a de Polignac number, because 2150122251 - 2⁹ = 2150121739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2150122201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129861 + ... + 145478.

It is an arithmetic number, because the mean of its divisors is an integer number (189984600).

Almost surely, 2^2150122251 is an apocalyptic number.

2150122251 is a deficient number, since it is larger than the sum of its proper divisors (889631349).

2150122251 is a wasteful number, since it uses less digits than its factorization.

2150122251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275498.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2150122251 is about 46369.4107251753. The cubic root of 2150122251 is about 1290.6873429744.

Adding to 2150122251 its reverse (1522210512), we get a palindrome (3672332763).

The spelling of 2150122251 in words is "two billion, one hundred fifty million, one hundred twenty-two thousand, two hundred fifty-one".