7912201121 has 8 divisors (see below), whose sum is σ = 8635512288. Its totient is φ = 7189560000.

The previous prime is 7912201097. The next prime is 7912201123. The reversal of 7912201121 is 1211022197.

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

It is a cyclic number.

It is not a de Polignac number, because 7912201121 - 2¹⁰ = 7912200097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7912201123) 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 7 ways as a sum of consecutive naturals, for example, 142655 + ... + 190196.

It is an arithmetic number, because the mean of its divisors is an integer number (1079439036).

Almost surely, 2^7912201121 is an apocalyptic number.

It is an amenable number.

7912201121 is a deficient number, since it is larger than the sum of its proper divisors (723311167).

7912201121 is a wasteful number, since it uses less digits than its factorization.

7912201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335023.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 7912201121 is about 88950.5543602737. The cubic root of 7912201121 is about 1992.6564962273.

The spelling of 7912201121 in words is "seven billion, nine hundred twelve million, two hundred one thousand, one hundred twenty-one".