20022110202221 has 8 divisors (see below), whose sum is σ = 20062426425600. Its totient is φ = 19981807530048.

The previous prime is 20022110202197. The next prime is 20022110202223. The reversal of 20022110202221 is 12220201122002.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20022110202221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20022110202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022110202223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427196 + ... + 6342453.

It is an arithmetic number, because the mean of its divisors is an integer number (2507803303200).

Almost surely, 2^{20022110202221} is an apocalyptic number.

It is an amenable number.

20022110202221 is a deficient number, since it is larger than the sum of its proper divisors (40316223379).

20022110202221 is an equidigital number, since it uses as much as digits as its factorization.

20022110202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6775603.

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

Adding to 20022110202221 its reverse (12220201122002), we get a palindrome (32242311324223).

The spelling of 20022110202221 in words is "twenty trillion, twenty-two billion, one hundred ten million, two hundred two thousand, two hundred twenty-one".