221111102112010 has 32 divisors (see below), whose sum is σ = 434852869894272. Its totient is φ = 80279765023680.

The previous prime is 221111102111989. The next prime is 221111102112013. The reversal of 221111102112010 is 10211201111122.

It is not an unprimeable number, because it can be changed into a prime (221111102112013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1553329857 + ... + 1553472196.

It is an arithmetic number, because the mean of its divisors is an integer number (13589152184196).

Almost surely, 2^{221111102112010} is an apocalyptic number.

221111102112010 is a deficient number, since it is larger than the sum of its proper divisors (213741767782262).

221111102112010 is a wasteful number, since it uses less digits than its factorization.

221111102112010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3106802718.

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

Adding to 221111102112010 its reverse (10211201111122), we get a palindrome (231322303223132).

The spelling of 221111102112010 in words is "two hundred twenty-one trillion, one hundred eleven billion, one hundred two million, one hundred twelve thousand, ten".