221102112010 has 32 divisors (see below), whose sum is σ = 429084652752. Its totient is φ = 81544995840.

The previous prime is 221102112001. The next prime is 221102112017. The reversal of 221102112010 is 10211201122.

221102112010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1597680841 + 219504431169 = 39971^2 + 468513^2 .

It is a super-2 number, since 2×221102112010² (a number of 23 digits) contains 22 as substring.

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 (221102112017) 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, 850729 + ... + 1079788.

Almost surely, 2^221102112010 is an apocalyptic number.

221102112010 is a deficient number, since it is larger than the sum of its proper divisors (207982540742).

221102112010 is a wasteful number, since it uses less digits than its factorization.

221102112010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931418.

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

Adding to 221102112010 its reverse (10211201122), we get a palindrome (231313313132).

The spelling of 221102112010 in words is "two hundred twenty-one billion, one hundred two million, one hundred twelve thousand, ten".