222221444122187 has 2 divisors, whose sum is σ = 222221444122188. Its totient is φ = 222221444122186.

The previous prime is 222221444122163. The next prime is 222221444122243. The reversal of 222221444122187 is 781221444122222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222221444122187 - 2²⁰ = 222221443073611 is a prime.

It is not a weakly prime, because it can be changed into another prime (222221444122127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110722061093 + 111110722061094.

It is an arithmetic number, because the mean of its divisors is an integer number (111110722061094).

Almost surely, 2^{222221444122187} is an apocalyptic number.

222221444122187 is a deficient number, since it is larger than the sum of its proper divisors (1).

222221444122187 is an equidigital number, since it uses as much as digits as its factorization.

222221444122187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 458752, while the sum is 44.

The spelling of 222221444122187 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, four hundred forty-four million, one hundred twenty-two thousand, one hundred eighty-seven".