21220002020110 has 32 divisors (see below), whose sum is σ = 39957074755200. Its totient is φ = 8103228967680.

The previous prime is 21220002020051. The next prime is 21220002020111. The reversal of 21220002020110 is 1102020002212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21220002020111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411055206 + ... + 411106825.

It is an arithmetic number, because the mean of its divisors is an integer number (1248658586100).

Almost surely, 2^{21220002020110} is an apocalyptic number.

21220002020110 is a deficient number, since it is larger than the sum of its proper divisors (18737072735090).

21220002020110 is a wasteful number, since it uses less digits than its factorization.

21220002020110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822162156.

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

Adding to 21220002020110 its reverse (1102020002212), we get a palindrome (22322022022322).

The spelling of 21220002020110 in words is "twenty-one trillion, two hundred twenty billion, two million, twenty thousand, one hundred ten".