120254021052421 has 16 divisors (see below), whose sum is σ = 126943670816640. Its totient is φ = 113600430028800.

The previous prime is 120254021052401. The next prime is 120254021052449. The reversal of 120254021052421 is 124250120452021.

It is a cyclic number.

It is not a de Polignac number, because 120254021052421 - 2⁹ = 120254021051909 is a prime.

It is a super-2 number, since 2×120254021052421² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120254021052401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 856433821 + ... + 856574221.

It is an arithmetic number, because the mean of its divisors is an integer number (7933979426040).

Almost surely, 2^{120254021052421} is an apocalyptic number.

It is an amenable number.

120254021052421 is a deficient number, since it is larger than the sum of its proper divisors (6689649764219).

120254021052421 is a wasteful number, since it uses less digits than its factorization.

120254021052421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268476.

The product of its (nonzero) digits is 12800, while the sum is 31.

The spelling of 120254021052421 in words is "one hundred twenty trillion, two hundred fifty-four billion, twenty-one million, fifty-two thousand, four hundred twenty-one".