221210211002 has 24 divisors (see below), whose sum is σ = 364756224000. Its totient is φ = 100540832040.

The previous prime is 221210210989. The next prime is 221210211007. The reversal of 221210211002 is 200112012122.

It is not an unprimeable number, because it can be changed into a prime (221210211007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3061649 + ... + 3133067.

It is an arithmetic number, because the mean of its divisors is an integer number (15198176000).

Almost surely, 2^221210211002 is an apocalyptic number.

221210211002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221210211002 is a deficient number, since it is larger than the sum of its proper divisors (143546012998).

221210211002 is a wasteful number, since it uses less digits than its factorization.

221210211002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84242 (or 84231 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221210211002 its reverse (200112012122), we get a palindrome (421322223124).

The spelling of 221210211002 in words is "two hundred twenty-one billion, two hundred ten million, two hundred eleven thousand, two".