222221212100099 has 4 divisors (see below), whose sum is σ = 222736806560160. Its totient is φ = 221705617640040.

The previous prime is 222221212100089. The next prime is 222221212100131. The reversal of 222221212100099 is 990001212122222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222221212100099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222221212100009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257797229384 + ... + 257797230245.

It is an arithmetic number, because the mean of its divisors is an integer number (55684201640040).

Almost surely, 2^{222221212100099} is an apocalyptic number.

222221212100099 is a deficient number, since it is larger than the sum of its proper divisors (515594460061).

222221212100099 is an equidigital number, since it uses as much as digits as its factorization.

222221212100099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515594460060.

The product of its (nonzero) digits is 10368, while the sum is 35.

The spelling of 222221212100099 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, two hundred twelve million, one hundred thousand, ninety-nine".