222112121111109 has 40 divisors (see below), whose sum is σ = 334019009918880. Its totient is φ = 147694087438416.

The previous prime is 222112121111107. The next prime is 222112121111119. The reversal of 222112121111109 is 901111121211222.

It is a happy number.

222112121111109 is a `hidden beast` number, since 2 + 221 + 1 + 212 + 111 + 110 + 9 = 666.

It is not a de Polignac number, because 222112121111109 - 2¹ = 222112121111107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222112121111107) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6847767 + ... + 22161140.

It is an arithmetic number, because the mean of its divisors is an integer number (8350475247972).

Almost surely, 2^{222112121111109} is an apocalyptic number.

It is an amenable number.

222112121111109 is a deficient number, since it is larger than the sum of its proper divisors (111906888807771).

222112121111109 is an frugal number, since it uses more digits than its factorization.

222112121111109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29009323 (or 29009299 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 27.

The spelling of 222112121111109 in words is "two hundred twenty-two trillion, one hundred twelve billion, one hundred twenty-one million, one hundred eleven thousand, one hundred nine".