23120221210111 has 4 divisors (see below), whose sum is σ = 23152377290400. Its totient is φ = 23088065129824.

The previous prime is 23120221210109. The next prime is 23120221210133. The reversal of 23120221210111 is 11101212202132.

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 23120221210111 - 2¹ = 23120221210109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23120221210811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16078039066 + ... + 16078040503.

It is an arithmetic number, because the mean of its divisors is an integer number (5788094322600).

Almost surely, 2^{23120221210111} is an apocalyptic number.

23120221210111 is a deficient number, since it is larger than the sum of its proper divisors (32156080289).

23120221210111 is an equidigital number, since it uses as much as digits as its factorization.

23120221210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32156080288.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 23120221210111 its reverse (11101212202132), we get a palindrome (34221433412243).

The spelling of 23120221210111 in words is "twenty-three trillion, one hundred twenty billion, two hundred twenty-one million, two hundred ten thousand, one hundred eleven".