1112211122212 has 24 divisors (see below), whose sum is σ = 1953723506616. Its totient is φ = 554006588928.

The previous prime is 1112211122207. The next prime is 1112211122213. The reversal of 1112211122212 is 2122211122111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 45320448996 + 1066890673216 = 212886^2 + 1032904^2 .

It is a super-3 number, since 3×1112211122212³ (a number of 37 digits) contains 333 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1112211122212.

It is not an unprimeable number, because it can be changed into a prime (1112211122213) 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, 1773388 + ... + 2317180.

It is an arithmetic number, because the mean of its divisors is an integer number (81405146109).

Almost surely, 2^{1112211122212} is an apocalyptic number.

It is an amenable number.

1112211122212 is a deficient number, since it is larger than the sum of its proper divisors (841512384404).

1112211122212 is a wasteful number, since it uses less digits than its factorization.

1112211122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545727 (or 545725 counting only the distinct ones).

The product of its digits is 64, while the sum is 19.

Adding to 1112211122212 its reverse (2122211122111), we get a palindrome (3234422244323).

The spelling of 1112211122212 in words is "one trillion, one hundred twelve billion, two hundred eleven million, one hundred twenty-two thousand, two hundred twelve".