1113111312222 has 64 divisors (see below), whose sum is σ = 2742656555520. Its totient is φ = 293279577984.

The previous prime is 1113111312211. The next prime is 1113111312227. The reversal of 1113111312222 is 2222131113111.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113111312227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 443953 + ... + 1556700.

It is an arithmetic number, because the mean of its divisors is an integer number (42854008680).

Almost surely, 2^{1113111312222} is an apocalyptic number.

1113111312222 is an abundant number, since it is smaller than the sum of its proper divisors (1629545243298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1113111312222 is a wasteful number, since it uses less digits than its factorization.

1113111312222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001697.

The product of its digits is 144, while the sum is 21.

Adding to 1113111312222 its reverse (2222131113111), we get a palindrome (3335242425333).

The spelling of 1113111312222 in words is "one trillion, one hundred thirteen billion, one hundred eleven million, three hundred twelve thousand, two hundred twenty-two".