1222212101189 has 2 divisors, whose sum is σ = 1222212101190. Its totient is φ = 1222212101188.

The previous prime is 1222212101161. The next prime is 1222212101207. The reversal of 1222212101189 is 9811012122221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1075852296289 + 146359804900 = 1037233^2 + 382570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222212101189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222212101489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611106050594 + 611106050595.

It is an arithmetic number, because the mean of its divisors is an integer number (611106050595).

Almost surely, 2^{1222212101189} is an apocalyptic number.

It is an amenable number.

1222212101189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222212101189 is an equidigital number, since it uses as much as digits as its factorization.

1222212101189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 32.

The spelling of 1222212101189 in words is "one trillion, two hundred twenty-two billion, two hundred twelve million, one hundred one thousand, one hundred eighty-nine".