212220100201 has 4 divisors (see below), whose sum is σ = 212969994832. Its totient is φ = 211470205572.

The previous prime is 212220100199. The next prime is 212220100223. The reversal of 212220100201 is 102001022212.

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 a cyclic number.

It is not a de Polignac number, because 212220100201 - 2¹ = 212220100199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212220100901) 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, 374946891 + ... + 374947456.

It is an arithmetic number, because the mean of its divisors is an integer number (53242498708).

Almost surely, 2^212220100201 is an apocalyptic number.

It is an amenable number.

212220100201 is a deficient number, since it is larger than the sum of its proper divisors (749894631).

212220100201 is an equidigital number, since it uses as much as digits as its factorization.

212220100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749894630.

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

Adding to 212220100201 its reverse (102001022212), we get a palindrome (314221122413).

The spelling of 212220100201 in words is "two hundred twelve billion, two hundred twenty million, one hundred thousand, two hundred one".