10223123122111 has 4 divisors (see below), whose sum is σ = 10223136465832. Its totient is φ = 10223109778392.

The previous prime is 10223123122103. The next prime is 10223123122181. The reversal of 10223123122111 is 11122132132201.

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 10223123122111 - 2³ = 10223123122103 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 (10223123122181) 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, 5447796 + ... + 7079881.

It is an arithmetic number, because the mean of its divisors is an integer number (2555784116458).

Almost surely, 2^{10223123122111} is an apocalyptic number.

10223123122111 is a deficient number, since it is larger than the sum of its proper divisors (13343721).

10223123122111 is an equidigital number, since it uses as much as digits as its factorization.

10223123122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13343720.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 10223123122111 its reverse (11122132132201), we get a palindrome (21345255254312).

The spelling of 10223123122111 in words is "ten trillion, two hundred twenty-three billion, one hundred twenty-three million, one hundred twenty-two thousand, one hundred eleven".