120022002021 has 4 divisors (see below), whose sum is σ = 160029336032. Its totient is φ = 80014668012.

The previous prime is 120022001989. The next prime is 120022002029. The reversal of 120022002021 is 120200220021.

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 120022002021 - 2⁵ = 120022001989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120022001988 and 120022002006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120022002029) 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, 20003667001 + ... + 20003667006.

It is an arithmetic number, because the mean of its divisors is an integer number (40007334008).

Almost surely, 2^120022002021 is an apocalyptic number.

It is an amenable number.

120022002021 is a deficient number, since it is larger than the sum of its proper divisors (40007334011).

120022002021 is an equidigital number, since it uses as much as digits as its factorization.

120022002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40007334010.

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

Adding to 120022002021 its reverse (120200220021), we get a palindrome (240222222042).

The spelling of 120022002021 in words is "one hundred twenty billion, twenty-two million, two thousand, twenty-one".