1222122222187 has 2 divisors, whose sum is σ = 1222122222188. Its totient is φ = 1222122222186.

The previous prime is 1222122222163. The next prime is 1222122222229. The reversal of 1222122222187 is 7812222212221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222122222187 - 2²⁷ = 1221988004459 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222122222787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611061111093 + 611061111094.

It is an arithmetic number, because the mean of its divisors is an integer number (611061111094).

Almost surely, 2^{1222122222187} is an apocalyptic number.

1222122222187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222122222187 is an equidigital number, since it uses as much as digits as its factorization.

1222122222187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14336, while the sum is 34.

The spelling of 1222122222187 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred eighty-seven".