20102221102 has 16 divisors (see below), whose sum is σ = 31918526640. Its totient is φ = 9478832832.

The previous prime is 20102221001. The next prime is 20102221159. The reversal of 20102221102 is 20112220102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4027623 + ... + 4032610.

It is an arithmetic number, because the mean of its divisors is an integer number (1994907915).

Almost surely, 2^20102221102 is an apocalyptic number.

20102221102 is a deficient number, since it is larger than the sum of its proper divisors (11816305538).

20102221102 is a wasteful number, since it uses less digits than its factorization.

20102221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8060307.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20102221102 its reverse (20112220102), we get a palindrome (40214441204).

The spelling of 20102221102 in words is "twenty billion, one hundred two million, two hundred twenty-one thousand, one hundred two".