10121001222113 has 4 divisors (see below), whose sum is σ = 10121008327428. Its totient is φ = 10120994116800.

The previous prime is 10121001222103. The next prime is 10121001222133. The reversal of 10121001222113 is 31122210012101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3151253381329 + 6969747840784 = 1775177^2 + 2640028^2 .

It is a cyclic number.

It is not a de Polignac number, because 10121001222113 - 2²⁸ = 10120732786657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10121001222091 and 10121001222100.

It is not an unprimeable number, because it can be changed into a prime (10121001222103) 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, 595556 + ... + 4538357.

It is an arithmetic number, because the mean of its divisors is an integer number (2530252081857).

Almost surely, 2^{10121001222113} is an apocalyptic number.

It is an amenable number.

10121001222113 is a deficient number, since it is larger than the sum of its proper divisors (7105315).

10121001222113 is an equidigital number, since it uses as much as digits as its factorization.

10121001222113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7105314.

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

Adding to 10121001222113 its reverse (31122210012101), we get a palindrome (41243211234214).

The spelling of 10121001222113 in words is "ten trillion, one hundred twenty-one billion, one million, two hundred twenty-two thousand, one hundred thirteen".