20021202110 has 32 divisors (see below), whose sum is σ = 44354665152. Its totient is φ = 6336380160.

The previous prime is 20021202083. The next prime is 20021202133. The reversal of 20021202110 is 1120212002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20021202091 and 20021202100.

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 15 ways as a sum of consecutive naturals, for example, 10999751 + ... + 11001570.

It is an arithmetic number, because the mean of its divisors is an integer number (1386083286).

Almost surely, 2^20021202110 is an apocalyptic number.

20021202110 is an abundant number, since it is smaller than the sum of its proper divisors (24333463042).

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

20021202110 is a wasteful number, since it uses less digits than its factorization.

20021202110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22001348.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20021202110 its reverse (1120212002), we get a palindrome (21141414112).

The spelling of 20021202110 in words is "twenty billion, twenty-one million, two hundred two thousand, one hundred ten".