20112000202221 has 16 divisors (see below), whose sum is σ = 27725594352000. Its totient is φ = 12958067233728.

The previous prime is 20112000202219. The next prime is 20112000202241. The reversal of 20112000202221 is 12220200021102.

It is not a de Polignac number, because 20112000202221 - 2¹ = 20112000202219 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20112000202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112000202241) 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, 608000881 + ... + 608033958.

It is an arithmetic number, because the mean of its divisors is an integer number (1732849647000).

Almost surely, 2^{20112000202221} is an apocalyptic number.

It is an amenable number.

20112000202221 is a deficient number, since it is larger than the sum of its proper divisors (7613594149779).

20112000202221 is a wasteful number, since it uses less digits than its factorization.

20112000202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216035028.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20112000202221 its reverse (12220200021102), we get a palindrome (32332200223323).

The spelling of 20112000202221 in words is "twenty trillion, one hundred twelve billion, two hundred two thousand, two hundred twenty-one".