22212000220221 has 80 divisors (see below), whose sum is σ = 38158806073344. Its totient is φ = 12613225581216.

The previous prime is 22212000220217. The next prime is 22212000220297. The reversal of 22212000220221 is 12202200021222.

22212000220221 is a `hidden beast` number, since 2 + 2 + 21 + 200 + 0 + 220 + 221 = 666.

It is not a de Polignac number, because 22212000220221 - 2² = 22212000220217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22212000220194 and 22212000220203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212000210221) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 58700596 + ... + 59077778.

Almost surely, 2^{22212000220221} is an apocalyptic number.

22212000220221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22212000220221 is a deficient number, since it is larger than the sum of its proper divisors (15946805853123).

22212000220221 is a wasteful number, since it uses less digits than its factorization.

22212000220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377852 (or 377843 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22212000220221 its reverse (12202200021222), we get a palindrome (34414200241443).

The spelling of 22212000220221 in words is "twenty-two trillion, two hundred twelve billion, two hundred twenty thousand, two hundred twenty-one".