10112102001221 has 4 divisors (see below), whose sum is σ = 11031384001344. Its totient is φ = 9192820001100.

The previous prime is 10112102001151. The next prime is 10112102001259. The reversal of 10112102001221 is 12210020121101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10112102001221 - 2³⁴ = 10094922132037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10112102001196 and 10112102001205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10112102003221) 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, 459641000045 + ... + 459641000066.

It is an arithmetic number, because the mean of its divisors is an integer number (2757846000336).

Almost surely, 2^{10112102001221} is an apocalyptic number.

10112102001221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10112102001221 is a deficient number, since it is larger than the sum of its proper divisors (919282000123).

10112102001221 is an equidigital number, since it uses as much as digits as its factorization.

10112102001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919282000122.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10112102001221 its reverse (12210020121101), we get a palindrome (22322122122322).

The spelling of 10112102001221 in words is "ten trillion, one hundred twelve billion, one hundred two million, one thousand, two hundred twenty-one".