10112100022021 has 4 divisors (see below), whose sum is σ = 10112111729100. Its totient is φ = 10112088314944.

The previous prime is 10112100021977. The next prime is 10112100022033. The reversal of 10112100022021 is 12022000121101.

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 658848773025 + 9453251248996 = 811695^2 + 3074614^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10112100022021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10112100021992 and 10112100022010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10112100022091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4444906 + ... + 6323083.

It is an arithmetic number, because the mean of its divisors is an integer number (2528027932275).

Almost surely, 2^{10112100022021} is an apocalyptic number.

It is an amenable number.

10112100022021 is a deficient number, since it is larger than the sum of its proper divisors (11707079).

10112100022021 is an equidigital number, since it uses as much as digits as its factorization.

10112100022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11707078.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10112100022021 its reverse (12022000121101), we get a palindrome (22134100143122).

The spelling of 10112100022021 in words is "ten trillion, one hundred twelve billion, one hundred million, twenty-two thousand, twenty-one".