12221011210123 has 8 divisors (see below), whose sum is σ = 12481137801792. Its totient is φ = 11960888996736.

The previous prime is 12221011210117. The next prime is 12221011210129. The reversal of 12221011210123 is 32101211012221.

12221011210123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12221011210117) and next prime (12221011210129).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12221011210123 is a prime.

It is a super-2 number, since 2×12221011210123² (a number of 27 digits) contains 22 as substring.

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 12221011210123.

It is not an unprimeable number, because it can be changed into a prime (12221011210129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4892211 + ... + 6955267.

It is an arithmetic number, because the mean of its divisors is an integer number (1560142225224).

Almost surely, 2^{12221011210123} is an apocalyptic number.

12221011210123 is a deficient number, since it is larger than the sum of its proper divisors (260126591669).

12221011210123 is a wasteful number, since it uses less digits than its factorization.

12221011210123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189141.

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

Adding to 12221011210123 its reverse (32101211012221), we get a palindrome (44322222222344).

The spelling of 12221011210123 in words is "twelve trillion, two hundred twenty-one billion, eleven million, two hundred ten thousand, one hundred twenty-three".