20112221200202 has 64 divisors (see below), whose sum is σ = 32225838543360. Its totient is φ = 9381123188736.

The previous prime is 20112221200199. The next prime is 20112221200229. The reversal of 20112221200202 is 20200212221102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4769317598 + ... + 4769321814.

It is an arithmetic number, because the mean of its divisors is an integer number (503528727240).

Almost surely, 2^{20112221200202} is an apocalyptic number.

20112221200202 is a deficient number, since it is larger than the sum of its proper divisors (12113617343158).

20112221200202 is a wasteful number, since it uses less digits than its factorization.

20112221200202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6695.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20112221200202 its reverse (20200212221102), we get a palindrome (40312433421304).

The spelling of 20112221200202 in words is "twenty trillion, one hundred twelve billion, two hundred twenty-one million, two hundred thousand, two hundred two".