221112111299 has 4 divisors (see below), whose sum is σ = 221120103336. Its totient is φ = 221104119264.

The previous prime is 221112111271. The next prime is 221112111301. The reversal of 221112111299 is 992111211122.

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

It is a cyclic number.

It is not a de Polignac number, because 221112111299 - 2⁸ = 221112111043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221112111229) 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, 3954374 + ... + 4009899.

It is an arithmetic number, because the mean of its divisors is an integer number (55280025834).

Almost surely, 2^221112111299 is an apocalyptic number.

221112111299 is a deficient number, since it is larger than the sum of its proper divisors (7992037).

221112111299 is an equidigital number, since it uses as much as digits as its factorization.

221112111299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7992036.

The product of its digits is 1296, while the sum is 32.

The spelling of 221112111299 in words is "two hundred twenty-one billion, one hundred twelve million, one hundred eleven thousand, two hundred ninety-nine".