2222012121209 has 2 divisors, whose sum is σ = 2222012121210. Its totient is φ = 2222012121208.

The previous prime is 2222012121181. The next prime is 2222012121233. The reversal of 2222012121209 is 9021212102222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1346238075625 + 875774045584 = 1160275^2 + 935828^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222012121209 - 2¹² = 2222012117113 is a prime.

It is not a weakly prime, because it can be changed into another prime (2222012129209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111006060604 + 1111006060605.

It is an arithmetic number, because the mean of its divisors is an integer number (1111006060605).

Almost surely, 2^{2222012121209} is an apocalyptic number.

It is an amenable number.

2222012121209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222012121209 is an equidigital number, since it uses as much as digits as its factorization.

2222012121209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 2222012121209 in words is "two trillion, two hundred twenty-two billion, twelve million, one hundred twenty-one thousand, two hundred nine".