212220101201 has 4 divisors (see below), whose sum is σ = 212498972004. Its totient is φ = 211941230400.

The previous prime is 212220101143. The next prime is 212220101251. The reversal of 212220101201 is 102101022212.

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 3096811201 + 209123290000 = 55649^2 + 457300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212220101201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212220101251) 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, 139434260 + ... + 139435781.

It is an arithmetic number, because the mean of its divisors is an integer number (53124743001).

Almost surely, 2^212220101201 is an apocalyptic number.

It is an amenable number.

212220101201 is a deficient number, since it is larger than the sum of its proper divisors (278870803).

212220101201 is an equidigital number, since it uses as much as digits as its factorization.

212220101201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278870802.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212220101201 its reverse (102101022212), we get a palindrome (314321123413).

The spelling of 212220101201 in words is "two hundred twelve billion, two hundred twenty million, one hundred one thousand, two hundred one".