20110211012210 has 24 divisors (see below), whose sum is σ = 39788301790188. Its totient is φ = 7312804004000.

The previous prime is 20110211012207. The next prime is 20110211012357. The reversal of 20110211012210 is 1221011201102.

It can be written as a sum of positive squares in 2 ways, for example, as 19693154663809 + 417056348401 = 4437697^2 + 645799^2 .

It is a super-2 number, since 2×20110211012210² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8310003341 + ... + 8310005760.

Almost surely, 2^{20110211012210} is an apocalyptic number.

20110211012210 is a deficient number, since it is larger than the sum of its proper divisors (19678090777978).

20110211012210 is a wasteful number, since it uses less digits than its factorization.

20110211012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16620009130 (or 16620009119 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20110211012210 its reverse (1221011201102), we get a palindrome (21331222213312).

The spelling of 20110211012210 in words is "twenty trillion, one hundred ten billion, two hundred eleven million, twelve thousand, two hundred ten".