212221233021001 has 16 divisors (see below), whose sum is σ = 212605038264960. Its totient is φ = 211837778651520.

The previous prime is 212221233020989. The next prime is 212221233021047. The reversal of 212221233021001 is 100120332122212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212221233021001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212221233021401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11639393781 + ... + 11639412013.

It is an arithmetic number, because the mean of its divisors is an integer number (13287814891560).

Almost surely, 2^{212221233021001} is an apocalyptic number.

It is an amenable number.

212221233021001 is a deficient number, since it is larger than the sum of its proper divisors (383805243959).

212221233021001 is a wasteful number, since it uses less digits than its factorization.

212221233021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26736.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 212221233021001 its reverse (100120332122212), we get a palindrome (312341565143213).

The spelling of 212221233021001 in words is "two hundred twelve trillion, two hundred twenty-one billion, two hundred thirty-three million, twenty-one thousand, one".