2251215442013 has 4 divisors (see below), whose sum is σ = 2252779873920. Its totient is φ = 2249651010108.

The previous prime is 2251215442009. The next prime is 2251215442031. The reversal of 2251215442013 is 3102445121522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2251215442013 - 2² = 2251215442009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251215442613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 782213795 + ... + 782216672.

It is an arithmetic number, because the mean of its divisors is an integer number (563194968480).

Almost surely, 2^{2251215442013} is an apocalyptic number.

It is an amenable number.

2251215442013 is a deficient number, since it is larger than the sum of its proper divisors (1564431907).

2251215442013 is a wasteful number, since it uses less digits than its factorization.

2251215442013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564431906.

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 2251215442013 in words is "two trillion, two hundred fifty-one billion, two hundred fifteen million, four hundred forty-two thousand, thirteen".