222010011961 has 2 divisors, whose sum is σ = 222010011962. Its totient is φ = 222010011960.

The previous prime is 222010011953. The next prime is 222010012039. The reversal of 222010011961 is 169110010222.

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., 116566933561 + 105443078400 = 341419^2 + 324720^2 .

It is a cyclic number.

It is not a de Polignac number, because 222010011961 - 2³ = 222010011953 is a prime.

It is not a weakly prime, because it can be changed into another prime (222010017961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111005005980 + 111005005981.

It is an arithmetic number, because the mean of its divisors is an integer number (111005005981).

Almost surely, 2^222010011961 is an apocalyptic number.

It is an amenable number.

222010011961 is a deficient number, since it is larger than the sum of its proper divisors (1).

222010011961 is an equidigital number, since it uses as much as digits as its factorization.

222010011961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 222010011961 in words is "two hundred twenty-two billion, ten million, eleven thousand, nine hundred sixty-one".