111201121210 has 32 divisors (see below), whose sum is σ = 211052381760. Its totient is φ = 42068268288.

The previous prime is 111201121201. The next prime is 111201121243. The reversal of 111201121210 is 12121102111.

It is a happy number.

111201121210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×111201121210² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380812 + ... + 606151.

It is an arithmetic number, because the mean of its divisors is an integer number (6595386930).

Almost surely, 2^111201121210 is an apocalyptic number.

111201121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111201121210 is a deficient number, since it is larger than the sum of its proper divisors (99851260550).

111201121210 is a wasteful number, since it uses less digits than its factorization.

111201121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987582.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111201121210 its reverse (12121102111), we get a palindrome (123322223321).

The spelling of 111201121210 in words is "one hundred eleven billion, two hundred one million, one hundred twenty-one thousand, two hundred ten".