22101000012187 has 2 divisors, whose sum is σ = 22101000012188. Its totient is φ = 22101000012186.

The previous prime is 22101000012163. The next prime is 22101000012241. The reversal of 22101000012187 is 78121000010122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22101000012187 - 2³¹ = 22098852528539 is a prime.

It is not a weakly prime, because it can be changed into another prime (22101000013187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050500006093 + 11050500006094.

It is an arithmetic number, because the mean of its divisors is an integer number (11050500006094).

Almost surely, 2^{22101000012187} is an apocalyptic number.

22101000012187 is a deficient number, since it is larger than the sum of its proper divisors (1).

22101000012187 is an equidigital number, since it uses as much as digits as its factorization.

22101000012187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 25.

The spelling of 22101000012187 in words is "twenty-two trillion, one hundred one billion, twelve thousand, one hundred eighty-seven".