221103312002 has 16 divisors (see below), whose sum is σ = 345710376000. Its totient is φ = 105924720720.

The previous prime is 221103311977. The next prime is 221103312013. The reversal of 221103312002 is 200213301122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14542502 + ... + 14557697.

It is an arithmetic number, because the mean of its divisors is an integer number (21606898500).

Almost surely, 2^221103312002 is an apocalyptic number.

221103312002 is a deficient number, since it is larger than the sum of its proper divisors (124607063998).

221103312002 is a wasteful number, since it uses less digits than its factorization.

221103312002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29100361.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 221103312002 its reverse (200213301122), we get a palindrome (421316613124).

The spelling of 221103312002 in words is "two hundred twenty-one billion, one hundred three million, three hundred twelve thousand, two".