22200210112221 has 24 divisors (see below), whose sum is σ = 32465105568896. Its totient is φ = 14617155736800.

The previous prime is 22200210112187. The next prime is 22200210112259. The reversal of 22200210112221 is 12221101200222.

It is a happy number.

22200210112221 is a `hidden beast` number, since 2 + 220 + 0 + 210 + 1 + 12 + 221 = 666.

It is not a de Polignac number, because 22200210112221 - 2¹³ = 22200210104029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22200210112194 and 22200210112203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200210112261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31756705 + ... + 32448246.

Almost surely, 2^{22200210112221} is an apocalyptic number.

It is an amenable number.

22200210112221 is a deficient number, since it is larger than the sum of its proper divisors (10264895456675).

22200210112221 is a wasteful number, since it uses less digits than its factorization.

22200210112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64205433 (or 64205430 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22200210112221 its reverse (12221101200222), we get a palindrome (34421311312443).

The spelling of 22200210112221 in words is "twenty-two trillion, two hundred billion, two hundred ten million, one hundred twelve thousand, two hundred twenty-one".