2202000021121 has 2 divisors, whose sum is σ = 2202000021122. Its totient is φ = 2202000021120.

The previous prime is 2202000021103. The next prime is 2202000021173. The reversal of 2202000021121 is 1211200002022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2171382020721 + 30618000400 = 1473561^2 + 174980^2 .

It is a cyclic number.

It is not a de Polignac number, because 2202000021121 - 2³¹ = 2199852537473 is a prime.

It is not a weakly prime, because it can be changed into another prime (2202000021191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1101000010560 + 1101000010561.

It is an arithmetic number, because the mean of its divisors is an integer number (1101000010561).

Almost surely, 2^{2202000021121} is an apocalyptic number.

It is an amenable number.

2202000021121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2202000021121 is an equidigital number, since it uses as much as digits as its factorization.

2202000021121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2202000021121 its reverse (1211200002022), we get a palindrome (3413200023143).

The spelling of 2202000021121 in words is "two trillion, two hundred two billion, twenty-one thousand, one hundred twenty-one".