22200121112221 has 8 divisors (see below), whose sum is σ = 25166129196320. Its totient is φ = 19413871093872.

The previous prime is 22200121112207. The next prime is 22200121112321. The reversal of 22200121112221 is 12221112100222.

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

It is a cyclic number.

It is not a de Polignac number, because 22200121112221 - 2²⁹ = 22199584241309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200121112321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44939516175 + ... + 44939516668.

It is an arithmetic number, because the mean of its divisors is an integer number (3145766149540).

Almost surely, 2^{22200121112221} is an apocalyptic number.

It is an amenable number.

22200121112221 is a deficient number, since it is larger than the sum of its proper divisors (2966008084099).

22200121112221 is a wasteful number, since it uses less digits than its factorization.

22200121112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89879032875.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22200121112221 its reverse (12221112100222), we get a palindrome (34421233212443).

The spelling of 22200121112221 in words is "twenty-two trillion, two hundred billion, one hundred twenty-one million, one hundred twelve thousand, two hundred twenty-one".