1122212112 has 60 divisors (see below), whose sum is σ = 3372368976. Its totient is φ = 320631360.

The previous prime is 1122212093. The next prime is 1122212123. The reversal of 1122212112 is 2112122211.

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

It is a junction number, because it is equal to n+sod(n) for n = 1122212091 and 1122212100.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 236214 + ... + 240917.

Almost surely, 2^1122212112 is an apocalyptic number.

1122212112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1122212112 is an abundant number, since it is smaller than the sum of its proper divisors (2250156864).

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

1122212112 is a wasteful number, since it uses less digits than its factorization.

1122212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477156 (or 477143 counting only the distinct ones).

The product of its digits is 32, while the sum is 15.

The square root of 1122212112 is about 33499.4345026897. The cubic root of 1122212112 is about 1039.1820837363.

Adding to 1122212112 its reverse (2112122211), we get a palindrome (3234334323).

The spelling of 1122212112 in words is "one billion, one hundred twenty-two million, two hundred twelve thousand, one hundred twelve".