111222100210 has 64 divisors (see below), whose sum is σ = 220752588672. Its totient is φ = 40086337536.

The previous prime is 111222100207. The next prime is 111222100217. The reversal of 111222100210 is 12001222111.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (111222100217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10431202 + ... + 10441858.

It is an arithmetic number, because the mean of its divisors is an integer number (3449259198).

Almost surely, 2^111222100210 is an apocalyptic number.

111222100210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111222100210 is a deficient number, since it is larger than the sum of its proper divisors (109530488462).

111222100210 is a wasteful number, since it uses less digits than its factorization.

111222100210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12587.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111222100210 its reverse (12001222111), we get a palindrome (123223322321).

The spelling of 111222100210 in words is "one hundred eleven billion, two hundred twenty-two million, one hundred thousand, two hundred ten".