222002120309 has 2 divisors, whose sum is σ = 222002120310. Its totient is φ = 222002120308.

The previous prime is 222002120251. The next prime is 222002120363. The reversal of 222002120309 is 903021200222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197382941284 + 24619179025 = 444278^2 + 156905^2 .

It is a cyclic number.

It is not a de Polignac number, because 222002120309 - 2¹² = 222002116213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222002120009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111001060154 + 111001060155.

It is an arithmetic number, because the mean of its divisors is an integer number (111001060155).

Almost surely, 2^222002120309 is an apocalyptic number.

It is an amenable number.

222002120309 is a deficient number, since it is larger than the sum of its proper divisors (1).

222002120309 is an equidigital number, since it uses as much as digits as its factorization.

222002120309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The spelling of 222002120309 in words is "two hundred twenty-two billion, two million, one hundred twenty thousand, three hundred nine".