22122012220201 has 4 divisors (see below), whose sum is σ = 22125004519252. Its totient is φ = 22119019921152.

The previous prime is 22122012220199. The next prime is 22122012220247. The reversal of 22122012220201 is 10202221022122.

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 3309415872400 + 18812596347801 = 1819180^2 + 4337349^2 .

It is a cyclic number.

It is not a de Polignac number, because 22122012220201 - 2¹ = 22122012220199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22122012220261) 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 3 ways as a sum of consecutive naturals, for example, 1496138436 + ... + 1496153221.

It is an arithmetic number, because the mean of its divisors is an integer number (5531251129813).

Almost surely, 2^{22122012220201} is an apocalyptic number.

It is an amenable number.

22122012220201 is a deficient number, since it is larger than the sum of its proper divisors (2992299051).

22122012220201 is an equidigital number, since it uses as much as digits as its factorization.

22122012220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992299050.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22122012220201 its reverse (10202221022122), we get a palindrome (32324233242323).

The spelling of 22122012220201 in words is "twenty-two trillion, one hundred twenty-two billion, twelve million, two hundred twenty thousand, two hundred one".