120002200221121 has 2 divisors, whose sum is σ = 120002200221122. Its totient is φ = 120002200221120.

The previous prime is 120002200221109. The next prime is 120002200221131. The reversal of 120002200221121 is 121122002200021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85003605667600 + 34998594553521 = 9219740^2 + 5915961^2 .

It is a cyclic number.

It is not a de Polignac number, because 120002200221121 - 2¹⁷ = 120002200090049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120002200221095 and 120002200221104.

It is not a weakly prime, because it can be changed into another prime (120002200221131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60001100110560 + 60001100110561.

It is an arithmetic number, because the mean of its divisors is an integer number (60001100110561).

Almost surely, 2^{120002200221121} is an apocalyptic number.

It is an amenable number.

120002200221121 is a deficient number, since it is larger than the sum of its proper divisors (1).

120002200221121 is an equidigital number, since it uses as much as digits as its factorization.

120002200221121 is an evil number, because the sum of its binary digits is even.

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

Adding to 120002200221121 its reverse (121122002200021), we get a palindrome (241124202421142).

The spelling of 120002200221121 in words is "one hundred twenty trillion, two billion, two hundred million, two hundred twenty-one thousand, one hundred twenty-one".