212213243123201 has 4 divisors (see below), whose sum is σ = 221439905867712. Its totient is φ = 202986580378692.

The previous prime is 212213243123179. The next prime is 212213243123209. The reversal of 212213243123201 is 102321342312212.

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 212213243123201 - 2⁶ = 212213243123137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212213243123209) 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, 4613331372221 + ... + 4613331372266.

It is an arithmetic number, because the mean of its divisors is an integer number (55359976466928).

Almost surely, 2^{212213243123201} is an apocalyptic number.

It is an amenable number.

212213243123201 is a deficient number, since it is larger than the sum of its proper divisors (9226662744511).

212213243123201 is an equidigital number, since it uses as much as digits as its factorization.

212213243123201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9226662744510.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 212213243123201 its reverse (102321342312212), we get a palindrome (314534585435413).

The spelling of 212213243123201 in words is "two hundred twelve trillion, two hundred thirteen billion, two hundred forty-three million, one hundred twenty-three thousand, two hundred one".