102220012209991 has 16 divisors (see below), whose sum is σ = 110115792259200. Its totient is φ = 94328906918400.

The previous prime is 102220012209961. The next prime is 102220012210031. The reversal of 102220012209991 is 199902210022201.

It is a cyclic number.

It is not a de Polignac number, because 102220012209991 - 2¹⁵ = 102220012177223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102220012209961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 983296066 + ... + 983400016.

It is an arithmetic number, because the mean of its divisors is an integer number (6882237016200).

Almost surely, 2^{102220012209991} is an apocalyptic number.

102220012209991 is a deficient number, since it is larger than the sum of its proper divisors (7895780049209).

102220012209991 is a wasteful number, since it uses less digits than its factorization.

102220012209991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125706.

The product of its (nonzero) digits is 23328, while the sum is 40.

The spelling of 102220012209991 in words is "one hundred two trillion, two hundred twenty billion, twelve million, two hundred nine thousand, nine hundred ninety-one".