11111020212212 has 24 divisors (see below), whose sum is σ = 19483985404800. Its totient is φ = 5544168424416.

The previous prime is 11111020212197. The next prime is 11111020212251. The reversal of 11111020212212 is 21221202011111.

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, 40160489 + ... + 40436207.

It is an arithmetic number, because the mean of its divisors is an integer number (811832725200).

Almost surely, 2^{11111020212212} is an apocalyptic number.

It is an amenable number.

11111020212212 is a deficient number, since it is larger than the sum of its proper divisors (8372965192588).

11111020212212 is a wasteful number, since it uses less digits than its factorization.

11111020212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296255 (or 296253 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11111020212212 its reverse (21221202011111), we get a palindrome (32332222223323).

The spelling of 11111020212212 in words is "eleven trillion, one hundred eleven billion, twenty million, two hundred twelve thousand, two hundred twelve".