120002212121021 has 4 divisors (see below), whose sum is σ = 120004131021600. Its totient is φ = 120000293220444.

The previous prime is 120002212120951. The next prime is 120002212121041. The reversal of 120002212121021 is 120121212200021.

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 120002212121021 - 2³⁸ = 119727334214077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120002212121041) 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, 959356481 + ... + 959481558.

It is an arithmetic number, because the mean of its divisors is an integer number (30001032755400).

Almost surely, 2^{120002212121021} is an apocalyptic number.

It is an amenable number.

120002212121021 is a deficient number, since it is larger than the sum of its proper divisors (1918900579).

120002212121021 is an equidigital number, since it uses as much as digits as its factorization.

120002212121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918900578.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120002212121021 its reverse (120121212200021), we get a palindrome (240123424321042).

The spelling of 120002212121021 in words is "one hundred twenty trillion, two billion, two hundred twelve million, one hundred twenty-one thousand, twenty-one".