120202000020021 has 4 divisors (see below), whose sum is σ = 160269333360032. Its totient is φ = 80134666680012.

The previous prime is 120202000019957. The next prime is 120202000020041. The reversal of 120202000020021 is 120020000202021.

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 not a de Polignac number, because 120202000020021 - 2⁶ = 120202000019957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120202000019979 and 120202000020006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120202000020041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20033666670001 + ... + 20033666670006.

It is an arithmetic number, because the mean of its divisors is an integer number (40067333340008).

Almost surely, 2^{120202000020021} is an apocalyptic number.

It is an amenable number.

120202000020021 is a deficient number, since it is larger than the sum of its proper divisors (40067333340011).

120202000020021 is an equidigital number, since it uses as much as digits as its factorization.

120202000020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40067333340010.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 120202000020021 its reverse (120020000202021), we get a palindrome (240222000222042).

The spelling of 120202000020021 in words is "one hundred twenty trillion, two hundred two billion, twenty thousand, twenty-one".