21200001111022 has 8 divisors (see below), whose sum is σ = 32476597446816. Its totient is φ = 10374468628752.

The previous prime is 21200001111017. The next prime is 21200001111083. The reversal of 21200001111022 is 22011110000212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21200001110993 and 21200001111011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112765963263 + ... + 112765963450.

It is an arithmetic number, because the mean of its divisors is an integer number (4059574680852).

Almost surely, 2^{21200001111022} is an apocalyptic number.

21200001111022 is a deficient number, since it is larger than the sum of its proper divisors (11276596335794).

21200001111022 is a wasteful number, since it uses less digits than its factorization.

21200001111022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225531926762.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21200001111022 its reverse (22011110000212), we get a palindrome (43211111111234).

The spelling of 21200001111022 in words is "twenty-one trillion, two hundred billion, one million, one hundred eleven thousand, twenty-two".