120012000221021 has 16 divisors (see below), whose sum is σ = 120623109984000. Its totient is φ = 119401836153600.

The previous prime is 120012000220991. The next prime is 120012000221023. The reversal of 120012000221021 is 120122000210021.

It is a cyclic number.

It is not a de Polignac number, because 120012000221021 - 2⁴⁶ = 49643256043357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120012000220987 and 120012000221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120012000221023) 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, 1645518926 + ... + 1645591856.

It is an arithmetic number, because the mean of its divisors is an integer number (7538944374000).

Almost surely, 2^{120012000221021} is an apocalyptic number.

It is an amenable number.

120012000221021 is a deficient number, since it is larger than the sum of its proper divisors (611109762979).

120012000221021 is a wasteful number, since it uses less digits than its factorization.

120012000221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79300.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 120012000221021 its reverse (120122000210021), we get a palindrome (240134000431042).

The spelling of 120012000221021 in words is "one hundred twenty trillion, twelve billion, two hundred twenty-one thousand, twenty-one".