221011031102 has 32 divisors (see below), whose sum is σ = 350571715200. Its totient is φ = 104346129888.

The previous prime is 221011031099. The next prime is 221011031159. The reversal of 221011031102 is 201130110122.

221011031102 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221011031102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335573 + ... + 744735.

It is an arithmetic number, because the mean of its divisors is an integer number (10955366100).

Almost surely, 2^221011031102 is an apocalyptic number.

221011031102 is a deficient number, since it is larger than the sum of its proper divisors (129560684098).

221011031102 is a wasteful number, since it uses less digits than its factorization.

221011031102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409400.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 221011031102 its reverse (201130110122), we get a palindrome (422141141224).

The spelling of 221011031102 in words is "two hundred twenty-one billion, eleven million, thirty-one thousand, one hundred two".