22312211021 has 8 divisors (see below), whose sum is σ = 22435890624. Its totient is φ = 22188808000.

The previous prime is 22312210997. The next prime is 22312211057. The reversal of 22312211021 is 12011221322.

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 22312211021 - 2⁶ = 22312210957 is a prime.

It is a super-3 number, since 3×22312211021³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22312211321) 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 7 ways as a sum of consecutive naturals, for example, 93701 + ... + 231093.

It is an arithmetic number, because the mean of its divisors is an integer number (2804486328).

Almost surely, 2^22312211021 is an apocalyptic number.

It is an amenable number.

22312211021 is a deficient number, since it is larger than the sum of its proper divisors (123679603).

22312211021 is a wasteful number, since it uses less digits than its factorization.

22312211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138291.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 22312211021 its reverse (12011221322), we get a palindrome (34323432343).

The spelling of 22312211021 in words is "twenty-two billion, three hundred twelve million, two hundred eleven thousand, twenty-one".