22212120001 has 2 divisors, whose sum is σ = 22212120002. Its totient is φ = 22212120000.

The previous prime is 22212119989. The next prime is 22212120037. The reversal of 22212120001 is 10002121222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15879780225 + 6332339776 = 126015^2 + 79576^2 .

It is a cyclic number.

It is not a de Polignac number, because 22212120001 - 2⁷ = 22212119873 is a prime.

It is not a weakly prime, because it can be changed into another prime (22212120071) 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 as a sum of consecutive naturals, namely, 11106060000 + 11106060001.

It is an arithmetic number, because the mean of its divisors is an integer number (11106060001).

Almost surely, 2^22212120001 is an apocalyptic number.

It is an amenable number.

22212120001 is a deficient number, since it is larger than the sum of its proper divisors (1).

22212120001 is an equidigital number, since it uses as much as digits as its factorization.

22212120001 is an odious number, because the sum of its binary digits is odd.

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

Adding to 22212120001 its reverse (10002121222), we get a palindrome (32214241223).

The spelling of 22212120001 in words is "twenty-two billion, two hundred twelve million, one hundred twenty thousand, one".