10112201210021 has 8 divisors (see below), whose sum is σ = 10460943880920. Its totient is φ = 9763461611008.

The previous prime is 10112201210011. The next prime is 10112201210047. The reversal of 10112201210021 is 12001210221101.

It can be written as a sum of positive squares in 4 ways, for example, as 1784855920225 + 8327345289796 = 1335985^2 + 2885714^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 10112201210021 - 2³⁸ = 9837323303077 is a prime.

It is a super-2 number, since 2×10112201210021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10112201209978 and 10112201210005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10112201210011) 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, 7402865 + ... + 8661801.

It is an arithmetic number, because the mean of its divisors is an integer number (1307617985115).

Almost surely, 2^{10112201210021} is an apocalyptic number.

It is an amenable number.

10112201210021 is a deficient number, since it is larger than the sum of its proper divisors (348742670899).

10112201210021 is a wasteful number, since it uses less digits than its factorization.

10112201210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535943.

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

Adding to 10112201210021 its reverse (12001210221101), we get a palindrome (22113411431122).

The spelling of 10112201210021 in words is "ten trillion, one hundred twelve billion, two hundred one million, two hundred ten thousand, twenty-one".