21223223002201 has 4 divisors (see below), whose sum is σ = 23152606911504. Its totient is φ = 19293839092900.

The previous prime is 21223223002187. The next prime is 21223223002229. The reversal of 21223223002201 is 10220032232212.

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 21223223002201 - 2¹⁹ = 21223222477913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21223223002901) 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, 964691954635 + ... + 964691954656.

It is an arithmetic number, because the mean of its divisors is an integer number (5788151727876).

Almost surely, 2^{21223223002201} is an apocalyptic number.

It is an amenable number.

21223223002201 is a deficient number, since it is larger than the sum of its proper divisors (1929383909303).

21223223002201 is a wasteful number, since it uses less digits than its factorization.

21223223002201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929383909302.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21223223002201 its reverse (10220032232212), we get a palindrome (31443255234413).

The spelling of 21223223002201 in words is "twenty-one trillion, two hundred twenty-three billion, two hundred twenty-three million, two thousand, two hundred one".