221020211102 has 8 divisors (see below), whose sum is σ = 331533757512. Its totient is φ = 110508958600.

The previous prime is 221020211063. The next prime is 221020211143. The reversal of 221020211102 is 201112020122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308024 + ... + 732747.

It is an arithmetic number, because the mean of its divisors is an integer number (41441719689).

Almost surely, 2^221020211102 is an apocalyptic number.

221020211102 is a deficient number, since it is larger than the sum of its proper divisors (110513546410).

221020211102 is a wasteful number, since it uses less digits than its factorization.

221020211102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146954.

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

Adding to 221020211102 its reverse (201112020122), we get a palindrome (422132231224).

The spelling of 221020211102 in words is "two hundred twenty-one billion, twenty million, two hundred eleven thousand, one hundred two".