111121222200212 has 48 divisors (see below), whose sum is σ = 223255088996352. Its totient is φ = 47406416369760.

The previous prime is 111121222200211. The next prime is 111121222200299. The reversal of 111121222200212 is 212002222121111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111121222200211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87226943 + ... + 88491705.

It is an arithmetic number, because the mean of its divisors is an integer number (4651147687424).

Almost surely, 2^{111121222200212} is an apocalyptic number.

It is an amenable number.

111121222200212 is an abundant number, since it is smaller than the sum of its proper divisors (112133866796140).

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

111121222200212 is a wasteful number, since it uses less digits than its factorization.

111121222200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279068 (or 1279066 counting only the distinct ones).

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

Adding to 111121222200212 its reverse (212002222121111), we get a palindrome (323123444321323).

The spelling of 111121222200212 in words is "one hundred eleven trillion, one hundred twenty-one billion, two hundred twenty-two million, two hundred thousand, two hundred twelve".