220111202022210 has 24 divisors (see below), whose sum is σ = 572289125257980. Its totient is φ = 58696320539232.

The previous prime is 220111202022197. The next prime is 220111202022311. The reversal of 220111202022210 is 12220202111022.

It is a happy number.

220111202022210 is a `hidden beast` number, since 220 + 1 + 1 + 1 + 20 + 202 + 221 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 207689574050721 + 12421627971489 = 14411439^2 + 3524433^2 .

It is a super-3 number, since 3×220111202022210³ (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 1222840011145 + ... + 1222840011324.

Almost surely, 2^{220111202022210} is an apocalyptic number.

220111202022210 is an abundant number, since it is smaller than the sum of its proper divisors (352177923235770).

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

220111202022210 is a wasteful number, since it uses less digits than its factorization.

220111202022210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445680022482 (or 2445680022479 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220111202022210 its reverse (12220202111022), we get a palindrome (232331404133232).

The spelling of 220111202022210 in words is "two hundred twenty trillion, one hundred eleven billion, two hundred two million, twenty-two thousand, two hundred ten".