222000155987 has 2 divisors, whose sum is σ = 222000155988. Its totient is φ = 222000155986.

The previous prime is 222000155963. The next prime is 222000155999. The reversal of 222000155987 is 789551000222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222000155987 - 2²⁰ = 221999107411 is a prime.

It is not a weakly prime, because it can be changed into another prime (222000155947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111000077993 + 111000077994.

It is an arithmetic number, because the mean of its divisors is an integer number (111000077994).

Almost surely, 2^222000155987 is an apocalyptic number.

222000155987 is a deficient number, since it is larger than the sum of its proper divisors (1).

222000155987 is an equidigital number, since it uses as much as digits as its factorization.

222000155987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 41.

The spelling of 222000155987 in words is "two hundred twenty-two billion, one hundred fifty-five thousand, nine hundred eighty-seven".