751225661121 has 8 divisors (see below), whose sum is σ = 1078683000640. Its totient is φ = 462292714512.

The previous prime is 751225661111. The next prime is 751225661143. The reversal of 751225661121 is 121166522157.

751225661121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 751225661121 - 2⁷ = 751225660993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 19262196439 = 751225661121 / (7 + 5 + 1 + 2 + 2 + 5 + 6 + 6 + 1 + 1 + 2 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 751225661121.

It is not an unprimeable number, because it can be changed into a prime (751225661111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9631098181 + ... + 9631098258.

It is an arithmetic number, because the mean of its divisors is an integer number (134835375080).

Almost surely, 2^751225661121 is an apocalyptic number.

It is an amenable number.

751225661121 is a deficient number, since it is larger than the sum of its proper divisors (327457339519).

751225661121 is a wasteful number, since it uses less digits than its factorization.

751225661121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19262196455.

The product of its digits is 50400, while the sum is 39.

The spelling of 751225661121 in words is "seven hundred fifty-one billion, two hundred twenty-five million, six hundred sixty-one thousand, one hundred twenty-one".