12212011223 has 8 divisors (see below), whose sum is σ = 12502858368. Its totient is φ = 11921475384.

The previous prime is 12212011177. The next prime is 12212011241. The reversal of 12212011223 is 32211021221.

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 12212011223 - 2¹² = 12212007127 is a prime.

It is a super-2 number, since 2×12212011223² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212011423) 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, 2540 + ... + 156302.

It is an arithmetic number, because the mean of its divisors is an integer number (1562857296).

Almost surely, 2^12212011223 is an apocalyptic number.

12212011223 is a deficient number, since it is larger than the sum of its proper divisors (290847145).

12212011223 is a wasteful number, since it uses less digits than its factorization.

12212011223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155653.

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

Adding to 12212011223 its reverse (32211021221), we get a palindrome (44423032444).

The spelling of 12212011223 in words is "twelve billion, two hundred twelve million, eleven thousand, two hundred twenty-three".