23212212011 has 8 divisors (see below), whose sum is σ = 24768619920. Its totient is φ = 21689275392.

The previous prime is 23212211999. The next prime is 23212212013. The reversal of 23212212011 is 11021221232.

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 23212212011 - 2²⁶ = 23145103147 is a prime.

It is a super-2 number, since 2×23212212011² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23212212013) 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, 8366390 + ... + 8369163.

It is an arithmetic number, because the mean of its divisors is an integer number (3096077490).

Almost surely, 2^23212212011 is an apocalyptic number.

23212212011 is a deficient number, since it is larger than the sum of its proper divisors (1556407909).

23212212011 is a wasteful number, since it uses less digits than its factorization.

23212212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16735645.

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

Adding to 23212212011 its reverse (11021221232), we get a palindrome (34233433243).

It can be divided in two parts, 2321221 and 2011, that added together give a palindrome (2323232).

The spelling of 23212212011 in words is "twenty-three billion, two hundred twelve million, two hundred twelve thousand, eleven".