1111202121212 has 12 divisors (see below), whose sum is σ = 1968032673096. Its totient is φ = 548907071760.

The previous prime is 1111202121179. The next prime is 1111202121221. The reversal of 1111202121212 is 2121212021111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1673496839 + ... + 1673497502.

It is an arithmetic number, because the mean of its divisors is an integer number (164002722758).

Almost surely, 2^{1111202121212} is an apocalyptic number.

It is an amenable number.

1111202121212 is a deficient number, since it is larger than the sum of its proper divisors (856830551884).

1111202121212 is a wasteful number, since it uses less digits than its factorization.

1111202121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346994428 (or 3346994426 counting only the distinct ones).

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

Adding to 1111202121212 its reverse (2121212021111), we get a palindrome (3232414142323).

The spelling of 1111202121212 in words is "one trillion, one hundred eleven billion, two hundred two million, one hundred twenty-one thousand, two hundred twelve".