220202221219961 has 2 divisors, whose sum is σ = 220202221219962. Its totient is φ = 220202221219960.

The previous prime is 220202221219921. The next prime is 220202221220021. The reversal of 220202221219961 is 169912122202022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 217652307265936 + 2549913954025 = 14753044^2 + 1596845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220202221219961 is a prime.

It is not a weakly prime, because it can be changed into another prime (220202221219901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110101110609980 + 110101110609981.

It is an arithmetic number, because the mean of its divisors is an integer number (110101110609981).

Almost surely, 2^{220202221219961} is an apocalyptic number.

It is an amenable number.

220202221219961 is a deficient number, since it is larger than the sum of its proper divisors (1).

220202221219961 is an equidigital number, since it uses as much as digits as its factorization.

220202221219961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 220202221219961 in words is "two hundred twenty trillion, two hundred two billion, two hundred twenty-one million, two hundred nineteen thousand, nine hundred sixty-one".