10211220222123 has 4 divisors (see below), whose sum is σ = 13614960296168. Its totient is φ = 6807480148080.

The previous prime is 10211220222113. The next prime is 10211220222163. The reversal of 10211220222123 is 32122202211201.

10211220222123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10211220222123 - 2³⁴ = 10194040352939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10211220222123.

It is not an unprimeable number, because it can be changed into a prime (10211220222113) 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, 1701870037018 + ... + 1701870037023.

It is an arithmetic number, because the mean of its divisors is an integer number (3403740074042).

Almost surely, 2^{10211220222123} is an apocalyptic number.

10211220222123 is a deficient number, since it is larger than the sum of its proper divisors (3403740074045).

10211220222123 is an equidigital number, since it uses as much as digits as its factorization.

10211220222123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3403740074044.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 10211220222123 its reverse (32122202211201), we get a palindrome (42333422433324).

The spelling of 10211220222123 in words is "ten trillion, two hundred eleven billion, two hundred twenty million, two hundred twenty-two thousand, one hundred twenty-three".