21222002321311 has 8 divisors (see below), whose sum is σ = 23157058788864. Its totient is φ = 19287909775320.

The previous prime is 21222002321269. The next prime is 21222002321347. The reversal of 21222002321311 is 11312320022212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21222002321311 - 2¹¹ = 21222002319263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222002321411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240934351 + ... + 241022416.

It is an arithmetic number, because the mean of its divisors is an integer number (2894632348608).

Almost surely, 2^{21222002321311} is an apocalyptic number.

21222002321311 is a deficient number, since it is larger than the sum of its proper divisors (1935056467553).

21222002321311 is a wasteful number, since it uses less digits than its factorization.

21222002321311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481960781.

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

Adding to 21222002321311 its reverse (11312320022212), we get a palindrome (32534322343523).

The spelling of 21222002321311 in words is "twenty-one trillion, two hundred twenty-two billion, two million, three hundred twenty-one thousand, three hundred eleven".