22120212001 has 4 divisors (see below), whose sum is σ = 22126087872. Its totient is φ = 22114336132.

The previous prime is 22120211989. The next prime is 22120212013. The reversal of 22120212001 is 10021202122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (22120211989) and next prime (22120212013).

It is a cyclic number.

It is not a de Polignac number, because 22120212001 - 2¹⁵ = 22120179233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22120212601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2932285 + ... + 2939818.

It is an arithmetic number, because the mean of its divisors is an integer number (5531521968).

Almost surely, 2^22120212001 is an apocalyptic number.

It is an amenable number.

22120212001 is a deficient number, since it is larger than the sum of its proper divisors (5875871).

22120212001 is an equidigital number, since it uses as much as digits as its factorization.

22120212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5875870.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22120212001 its reverse (10021202122), we get a palindrome (32141414123).

The spelling of 22120212001 in words is "twenty-two billion, one hundred twenty million, two hundred twelve thousand, one".