10211010112021 has 8 divisors (see below), whose sum is σ = 10213608115800. Its totient is φ = 10208412453120.

The previous prime is 10211010112019. The next prime is 10211010112031. The reversal of 10211010112021 is 12021101011201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 306488460996 + 9904521651025 = 553614^2 + 3147145^2 .

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 10211010112021 - 2¹ = 10211010112019 is a prime.

It is a super-2 number, since 2×10211010112021² (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 = 10211010111992 and 10211010112010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211010112031) 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, 65281135 + ... + 65437363.

It is an arithmetic number, because the mean of its divisors is an integer number (1276701014475).

Almost surely, 2^{10211010112021} is an apocalyptic number.

It is an amenable number.

10211010112021 is a deficient number, since it is larger than the sum of its proper divisors (2598003779).

10211010112021 is an equidigital number, since it uses as much as digits as its factorization.

10211010112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172439.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10211010112021 its reverse (12021101011201), we get a palindrome (22232111123222).

The spelling of 10211010112021 in words is "ten trillion, two hundred eleven billion, ten million, one hundred twelve thousand, twenty-one".