2251366603122 has 64 divisors (see below), whose sum is σ = 5557525182720. Its totient is φ = 592084905984.

The previous prime is 2251366603121. The next prime is 2251366603141. The reversal of 2251366603122 is 2213066631522.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (2251366603121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5647747 + ... + 6033222.

It is an arithmetic number, because the mean of its divisors is an integer number (86836330980).

Almost surely, 2^{2251366603122} is an apocalyptic number.

2251366603122 is an abundant number, since it is smaller than the sum of its proper divisors (3306158579598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2251366603122 is a wasteful number, since it uses less digits than its factorization.

2251366603122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11681347.

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 2251366603122 in words is "two trillion, two hundred fifty-one billion, three hundred sixty-six million, six hundred three thousand, one hundred twenty-two".