10123212011201 has 4 divisors (see below), whose sum is σ = 10123461165012. Its totient is φ = 10122962857392.

The previous prime is 10123212011191. The next prime is 10123212011261. The reversal of 10123212011201 is 10211021232101.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2785744593025 + 7337467418176 = 1669055^2 + 2708776^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10123212011201 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 10123212011201.

It is not an unprimeable number, because it can be changed into a prime (10123212011261) 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, 124515950 + ... + 124597223.

It is an arithmetic number, because the mean of its divisors is an integer number (2530865291253).

Almost surely, 2^{10123212011201} is an apocalyptic number.

It is an amenable number.

10123212011201 is a deficient number, since it is larger than the sum of its proper divisors (249153811).

10123212011201 is an equidigital number, since it uses as much as digits as its factorization.

10123212011201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249153810.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 10123212011201 its reverse (10211021232101), we get a palindrome (20334233243302).

The spelling of 10123212011201 in words is "ten trillion, one hundred twenty-three billion, two hundred twelve million, eleven thousand, two hundred one".