1111102121212 has 24 divisors (see below), whose sum is σ = 1945439828640. Its totient is φ = 555262256640.

The previous prime is 1111102121203. The next prime is 1111102121231. The reversal of 1111102121212 is 2121212011111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120023688 + ... + 120032944.

It is an arithmetic number, because the mean of its divisors is an integer number (81059992860).

Almost surely, 2^{1111102121212} is an apocalyptic number.

It is an amenable number.

1111102121212 is a deficient number, since it is larger than the sum of its proper divisors (834337707428).

1111102121212 is a wasteful number, since it uses less digits than its factorization.

1111102121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21621 (or 21619 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 1111102121212 its reverse (2121212011111), we get a palindrome (3232314132323).

It can be divided in two parts, 111110 and 2121212, that added together give a palindrome (2232322).

The spelling of 1111102121212 in words is "one trillion, one hundred eleven billion, one hundred two million, one hundred twenty-one thousand, two hundred twelve".