120010100021 has 8 divisors (see below), whose sum is σ = 137872487424. Its totient is φ = 102327234480.

The previous prime is 120010100009. The next prime is 120010100039. The reversal of 120010100021 is 120001010021.

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 120010100021 - 2¹⁴ = 120010083637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120010099981 and 120010100008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120010103021) 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, 44879030 + ... + 44881703.

It is an arithmetic number, because the mean of its divisors is an integer number (17234060928).

Almost surely, 2^120010100021 is an apocalyptic number.

It is an amenable number.

120010100021 is a deficient number, since it is larger than the sum of its proper divisors (17862387403).

120010100021 is an equidigital number, since it uses as much as digits as its factorization.

120010100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89760931.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 120010100021 its reverse (120001010021), we get a palindrome (240011110042).

The spelling of 120010100021 in words is "one hundred twenty billion, ten million, one hundred thousand, twenty-one".