211222023321 has 16 divisors (see below), whose sum is σ = 289311480000. Its totient is φ = 136975480128.

The previous prime is 211222023293. The next prime is 211222023361. The reversal of 211222023321 is 123320222112.

It is not a de Polignac number, because 211222023321 - 2¹³ = 211222015129 is a prime.

It is a super-2 number, since 2×211222023321² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211222023361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229555 + ... + 689303.

It is an arithmetic number, because the mean of its divisors is an integer number (18081967500).

Almost surely, 2^211222023321 is an apocalyptic number.

It is an amenable number.

211222023321 is a deficient number, since it is larger than the sum of its proper divisors (78089456679).

211222023321 is a wasteful number, since it uses less digits than its factorization.

211222023321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463928.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 211222023321 its reverse (123320222112), we get a palindrome (334542245433).

The spelling of 211222023321 in words is "two hundred eleven billion, two hundred twenty-two million, twenty-three thousand, three hundred twenty-one".