2251111522 has 16 divisors (see below), whose sum is σ = 3843796032. Its totient is φ = 978743920.

The previous prime is 2251111481. The next prime is 2251111549.

It is a happy number.

2251111522 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2251111493 and 2251111502.

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, 2223913 + ... + 2224924.

It is an arithmetic number, because the mean of its divisors is an integer number (240237252).

Almost surely, 2^2251111522 is an apocalyptic number.

2251111522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2251111522 is a deficient number, since it is larger than the sum of its proper divisors (1592684510).

2251111522 is a wasteful number, since it uses less digits than its factorization.

2251111522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4448873.

The product of its digits is 400, while the sum is 22.

The square root of 2251111522 is about 47445.8799265015. The cubic root of 2251111522 is about 1310.5864402276.

The spelling of 2251111522 in words is "two billion, two hundred fifty-one million, one hundred eleven thousand, five hundred twenty-two".