111220221110 has 16 divisors (see below), whose sum is σ = 204852128976. Its totient is φ = 43453481568.

The previous prime is 111220221107. The next prime is 111220221121. The reversal of 111220221110 is 11122022111.

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, 129325409 + ... + 129326268.

It is an arithmetic number, because the mean of its divisors is an integer number (12803258061).

Almost surely, 2^111220221110 is an apocalyptic number.

111220221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111220221110 is a deficient number, since it is larger than the sum of its proper divisors (93631907866).

111220221110 is a wasteful number, since it uses less digits than its factorization.

111220221110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258651727.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111220221110 its reverse (11122022111), we get a palindrome (122342243221).

The spelling of 111220221110 in words is "one hundred eleven billion, two hundred twenty million, two hundred twenty-one thousand, one hundred ten".