120021222000021 has 4 divisors (see below), whose sum is σ = 160028296000032. Its totient is φ = 80014148000012.

The previous prime is 120021222000013. The next prime is 120021222000067. The reversal of 120021222000021 is 120000222120021.

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 120021222000021 - 2³ = 120021222000013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021222700021) 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, 20003537000001 + ... + 20003537000006.

It is an arithmetic number, because the mean of its divisors is an integer number (40007074000008).

Almost surely, 2^{120021222000021} is an apocalyptic number.

It is an amenable number.

120021222000021 is a deficient number, since it is larger than the sum of its proper divisors (40007074000011).

120021222000021 is an equidigital number, since it uses as much as digits as its factorization.

120021222000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40007074000010.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 120021222000021 its reverse (120000222120021), we get a palindrome (240021444120042).

The spelling of 120021222000021 in words is "one hundred twenty trillion, twenty-one billion, two hundred twenty-two million, twenty-one", and thus it is an aban number.