23012202211 has 4 divisors (see below), whose sum is σ = 23012657800. Its totient is φ = 23011746624.

The previous prime is 23012202209. The next prime is 23012202229. The reversal of 23012202211 is 11220221032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23012202211 - 2¹ = 23012202209 is a prime.

It is a super-2 number, since 2×23012202211² (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 (23012202511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141006 + ... + 256723.

It is an arithmetic number, because the mean of its divisors is an integer number (5753164450).

Almost surely, 2^23012202211 is an apocalyptic number.

23012202211 is a deficient number, since it is larger than the sum of its proper divisors (455589).

23012202211 is an equidigital number, since it uses as much as digits as its factorization.

23012202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455588.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 23012202211 its reverse (11220221032), we get a palindrome (34232423243).

The spelling of 23012202211 in words is "twenty-three billion, twelve million, two hundred two thousand, two hundred eleven".