120151515150221 has 4 divisors (see below), whose sum is σ = 120180047929344. Its totient is φ = 120122982371100.

The previous prime is 120151515150203. The next prime is 120151515150259. The reversal of 120151515150221 is 122051515151021.

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 120151515150221 - 2¹⁸ = 120151514888077 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 (120151515150521) 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, 14266383245 + ... + 14266391666.

It is an arithmetic number, because the mean of its divisors is an integer number (30045011982336).

Almost surely, 2^{120151515150221} is an apocalyptic number.

It is an amenable number.

120151515150221 is a deficient number, since it is larger than the sum of its proper divisors (28532779123).

120151515150221 is an equidigital number, since it uses as much as digits as its factorization.

120151515150221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28532779122.

The product of its (nonzero) digits is 5000, while the sum is 32.

The spelling of 120151515150221 in words is "one hundred twenty trillion, one hundred fifty-one billion, five hundred fifteen million, one hundred fifty thousand, two hundred twenty-one".