111421201210 has 64 divisors (see below), whose sum is σ = 221822406144. Its totient is φ = 39958528000.

The previous prime is 111421201189. The next prime is 111421201237. The reversal of 111421201210 is 12102124111.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2835759 + ... + 2874781.

It is an arithmetic number, because the mean of its divisors is an integer number (3465975096).

Almost surely, 2^111421201210 is an apocalyptic number.

111421201210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111421201210 is a deficient number, since it is larger than the sum of its proper divisors (110401204934).

111421201210 is a wasteful number, since it uses less digits than its factorization.

111421201210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39399.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111421201210 its reverse (12102124111), we get a palindrome (123523325321).

The spelling of 111421201210 in words is "one hundred eleven billion, four hundred twenty-one million, two hundred one thousand, two hundred ten".