111210202221212 has 24 divisors (see below), whose sum is σ = 195207176236800. Its totient is φ = 55436725626480.

The previous prime is 111210202221191. The next prime is 111210202221227. The reversal of 111210202221212 is 212122202012111.

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, 349243133 + ... + 349561419.

It is an arithmetic number, because the mean of its divisors is an integer number (8133632343200).

Almost surely, 2^{111210202221212} is an apocalyptic number.

It is an amenable number.

111210202221212 is a deficient number, since it is larger than the sum of its proper divisors (83996974015588).

111210202221212 is a wasteful number, since it uses less digits than its factorization.

111210202221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582521 (or 582519 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 111210202221212 its reverse (212122202012111), we get a palindrome (323332404233323).

The spelling of 111210202221212 in words is "one hundred eleven trillion, two hundred ten billion, two hundred two million, two hundred twenty-one thousand, two hundred twelve".