1111109212 has 6 divisors (see below), whose sum is σ = 1944441128. Its totient is φ = 555554604.

The previous prime is 1111109203. The next prime is 1111109221. The reversal of 1111109212 is 2129011111.

It is an interprime number because it is at equal distance from previous prime (1111109203) and next prime (1111109221).

It is a self number, because there is not a number n which added to its sum of digits gives 1111109212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138888648 + ... + 138888655.

Almost surely, 2^1111109212 is an apocalyptic number.

It is an amenable number.

1111109212 is a deficient number, since it is larger than the sum of its proper divisors (833331916).

1111109212 is a wasteful number, since it uses less digits than its factorization.

1111109212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277777307 (or 277777305 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 19.

The square root of 1111109212 is about 33333.3048466545. The cubic root of 1111109212 is about 1035.7435785530.

The spelling of 1111109212 in words is "one billion, one hundred eleven million, one hundred nine thousand, two hundred twelve".