222101221209 has 16 divisors (see below), whose sum is σ = 339146526720. Its totient is φ = 126650019600.

The previous prime is 222101221201. The next prime is 222101221217. The reversal of 222101221209 is 902122101222.

It is an interprime number because it is at equal distance from previous prime (222101221201) and next prime (222101221217).

It is not a de Polignac number, because 222101221209 - 2³ = 222101221201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222101221201) 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, 11029867 + ... + 11049984.

It is an arithmetic number, because the mean of its divisors is an integer number (21196657920).

Almost surely, 2^222101221209 is an apocalyptic number.

It is an amenable number.

222101221209 is a deficient number, since it is larger than the sum of its proper divisors (117045305511).

222101221209 is a wasteful number, since it uses less digits than its factorization.

222101221209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22080340.

The product of its (nonzero) digits is 576, while the sum is 24.

The spelling of 222101221209 in words is "two hundred twenty-two billion, one hundred one million, two hundred twenty-one thousand, two hundred nine".