20021001110 has 32 divisors (see below), whose sum is σ = 39320508672. Its totient is φ = 7279152480.

The previous prime is 20021001079. The next prime is 20021001139. The reversal of 20021001110 is 1110012002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 897917 + ... + 919943.

It is an arithmetic number, because the mean of its divisors is an integer number (1228765896).

Almost surely, 2^20021001110 is an apocalyptic number.

20021001110 is a deficient number, since it is larger than the sum of its proper divisors (19299507562).

20021001110 is a wasteful number, since it uses less digits than its factorization.

20021001110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30308.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 20021001110 its reverse (1110012002), we get a palindrome (21131013112).

The spelling of 20021001110 in words is "twenty billion, twenty-one million, one thousand, one hundred ten".