220233251236121 has 2 divisors, whose sum is σ = 220233251236122. Its totient is φ = 220233251236120.

The previous prime is 220233251236109. The next prime is 220233251236237. The reversal of 220233251236121 is 121632152332022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130360196816521 + 89873054419600 = 11417539^2 + 9480140^2 .

It is a cyclic number.

It is not a de Polignac number, because 220233251236121 - 2³⁴ = 220216071366937 is a prime.

It is not a weakly prime, because it can be changed into another prime (220233251236021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110116625618060 + 110116625618061.

It is an arithmetic number, because the mean of its divisors is an integer number (110116625618061).

Almost surely, 2^{220233251236121} is an apocalyptic number.

It is an amenable number.

220233251236121 is a deficient number, since it is larger than the sum of its proper divisors (1).

220233251236121 is an equidigital number, since it uses as much as digits as its factorization.

220233251236121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 220233251236121 in words is "two hundred twenty trillion, two hundred thirty-three billion, two hundred fifty-one million, two hundred thirty-six thousand, one hundred twenty-one".