221000001102 has 32 divisors (see below), whose sum is σ = 492076029600. Its totient is φ = 73521929664.

The previous prime is 221000001059. The next prime is 221000001127. The reversal of 221000001102 is 201100000122.

It is a Harshad number since it is a multiple of its sum of digits (9).

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, 3992743 + ... + 4047714.

It is an arithmetic number, because the mean of its divisors is an integer number (15377375925).

Almost surely, 2^221000001102 is an apocalyptic number.

221000001102 is an abundant number, since it is smaller than the sum of its proper divisors (271076028498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221000001102 is a wasteful number, since it uses less digits than its factorization.

221000001102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8040977 (or 8040971 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 221000001102 its reverse (201100000122), we get a palindrome (422100001224).

The spelling of 221000001102 in words is "two hundred twenty-one billion, one thousand, one hundred two".