111201222120212 has 24 divisors (see below), whose sum is σ = 222460619302656. Its totient is φ = 47645200538208.

The previous prime is 111201222120151. The next prime is 111201222120281. The reversal of 111201222120212 is 212021222102111.

It is a super-2 number, since 2×111201222120212² (a number of 29 digits) contains 22 as substring.

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, 519311243 + ... + 519525330.

It is an arithmetic number, because the mean of its divisors is an integer number (9269192470944).

Almost surely, 2^{111201222120212} is an apocalyptic number.

It is an amenable number.

111201222120212 is an abundant number, since it is smaller than the sum of its proper divisors (111259397182444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111201222120212 is a wasteful number, since it uses less digits than its factorization.

111201222120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038840407 (or 1038840405 counting only the distinct ones).

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

Adding to 111201222120212 its reverse (212021222102111), we get a palindrome (323222444222323).

The spelling of 111201222120212 in words is "one hundred eleven trillion, two hundred one billion, two hundred twenty-two million, one hundred twenty thousand, two hundred twelve".