120002022112021 has 6 divisors (see below), whose sum is σ = 139594188987510. Its totient is φ = 102858876095976.

The previous prime is 120002022112001. The next prime is 120002022112057. The reversal of 120002022112021 is 120211220200021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 78370492049521 + 41631530062500 = 8852711^2 + 6452250^2 .

It is not a de Polignac number, because 120002022112021 - 2³¹ = 119999874628373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120002022111986 and 120002022112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120002022112001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1224510429666 + ... + 1224510429763.

It is an arithmetic number, because the mean of its divisors is an integer number (23265698164585).

Almost surely, 2^{120002022112021} is an apocalyptic number.

It is an amenable number.

120002022112021 is a deficient number, since it is larger than the sum of its proper divisors (19592166875489).

120002022112021 is an equidigital number, since it uses as much as digits as its factorization.

120002022112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449020859443 (or 2449020859436 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 120002022112021 its reverse (120211220200021), we get a palindrome (240213242312042).

The spelling of 120002022112021 in words is "one hundred twenty trillion, two billion, twenty-two million, one hundred twelve thousand, twenty-one".