22201021212193 has 4 divisors (see below), whose sum is σ = 22564972379668. Its totient is φ = 21837070044720.

The previous prime is 22201021212191. The next prime is 22201021212211. The reversal of 22201021212193 is 39121212010222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2123918572689 + 20077102639504 = 1457367^2 + 4480748^2 .

It is a cyclic number.

It is not a de Polignac number, because 22201021212193 - 2¹ = 22201021212191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22201021212191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181975583646 + ... + 181975583767.

It is an arithmetic number, because the mean of its divisors is an integer number (5641243094917).

Almost surely, 2^{22201021212193} is an apocalyptic number.

It is an amenable number.

22201021212193 is a deficient number, since it is larger than the sum of its proper divisors (363951167475).

22201021212193 is an equidigital number, since it uses as much as digits as its factorization.

22201021212193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363951167474.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 22201021212193 in words is "twenty-two trillion, two hundred one billion, twenty-one million, two hundred twelve thousand, one hundred ninety-three".