210111221101023 has 24 divisors (see below), whose sum is σ = 340032574040016. Its totient is φ = 123898508755200.

The previous prime is 210111221101021. The next prime is 210111221101031. The reversal of 210111221101023 is 320101122111012.

It is a happy number.

210111221101023 is a `hidden beast` number, since 210 + 111 + 221 + 101 + 0 + 23 = 666.

It is not a de Polignac number, because 210111221101023 - 2¹ = 210111221101021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210111221100987 and 210111221101005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210111221101021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28680206698 + ... + 28680214023.

It is an arithmetic number, because the mean of its divisors is an integer number (14168023918334).

Almost surely, 2^{210111221101023} is an apocalyptic number.

210111221101023 is a deficient number, since it is larger than the sum of its proper divisors (129921352938993).

210111221101023 is a wasteful number, since it uses less digits than its factorization.

210111221101023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57360420775 (or 57360420772 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 210111221101023 its reverse (320101122111012), we get a palindrome (530212343212035).

The spelling of 210111221101023 in words is "two hundred ten trillion, one hundred eleven billion, two hundred twenty-one million, one hundred one thousand, twenty-three".