111222453279 has 8 divisors (see below), whose sum is σ = 169481833600. Its totient is φ = 63555687576.

The previous prime is 111222453271. The next prime is 111222453299. The reversal of 111222453279 is 972354222111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111222453279 - 2³ = 111222453271 is a prime.

It is a super-2 number, since 2×111222453279² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111222453271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2648153629 + ... + 2648153670.

It is an arithmetic number, because the mean of its divisors is an integer number (21185229200).

Almost surely, 2^111222453279 is an apocalyptic number.

111222453279 is a deficient number, since it is larger than the sum of its proper divisors (58259380321).

111222453279 is an equidigital number, since it uses as much as digits as its factorization.

111222453279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5296307309.

The product of its digits is 60480, while the sum is 39.

The spelling of 111222453279 in words is "one hundred eleven billion, two hundred twenty-two million, four hundred fifty-three thousand, two hundred seventy-nine".