10112021 has 4 divisors (see below), whose sum is σ = 10189344. Its totient is φ = 10034700.

The previous prime is 10111993. The next prime is 10112027. The reversal of 10112021 is 12021101.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12021101 = 2063 ⋅5827.

It is a cyclic number.

It is not a de Polignac number, because 10112021 - 2¹⁸ = 9849877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10112027) 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, 38465 + ... + 38726.

It is an arithmetic number, because the mean of its divisors is an integer number (2547336).

Almost surely, 2^10112021 is an apocalyptic number.

It is an amenable number.

10112021 is a deficient number, since it is larger than the sum of its proper divisors (77323).

10112021 is an equidigital number, since it uses as much as digits as its factorization.

10112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77322.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 10112021 is about 3179.9404082467. The cubic root of 10112021 is about 216.2449567247.

Adding to 10112021 its reverse (12021101), we get a palindrome (22133122).

It can be divided in two parts, 1011 and 2021, that multiplied together give a triangular number (2043231 = T₂₀₂₁).

The spelling of 10112021 in words is "ten million, one hundred twelve thousand, twenty-one".