221112110011210 has 128 divisors (see below), whose sum is σ = 439346143272960. Its totient is φ = 80115478470720.

The previous prime is 221112110011171. The next prime is 221112110011229. The reversal of 221112110011210 is 12110011211122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15229148331 + ... + 15229162849.

It is an arithmetic number, because the mean of its divisors is an integer number (3432391744320).

Almost surely, 2^{221112110011210} is an apocalyptic number.

221112110011210 is a deficient number, since it is larger than the sum of its proper divisors (218234033261750).

221112110011210 is a wasteful number, since it uses less digits than its factorization.

221112110011210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18593 (or 18571 counting only the distinct ones).

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

Adding to 221112110011210 its reverse (12110011211122), we get a palindrome (233222121222332).

The spelling of 221112110011210 in words is "two hundred twenty-one trillion, one hundred twelve billion, one hundred ten million, eleven thousand, two hundred ten".