10570021 has 8 divisors (see below), whose sum is σ = 13178304. Its totient is φ = 8236320.

The previous prime is 10570013. The next prime is 10570033. The reversal of 10570021 is 12007501.

10570021 = T₄₈₅ + T₄₈₆ + ... + T₅₆₁.

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 10570021 - 2³ = 10570013 is a prime.

It is a super-2 number, since 2×10570021² = 223450687880882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10569977 and 10570004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10570081) 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, 68560 + ... + 68713.

It is an arithmetic number, because the mean of its divisors is an integer number (1647288).

Almost surely, 2^10570021 is an apocalyptic number.

10570021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10570021 is a deficient number, since it is larger than the sum of its proper divisors (2608283).

10570021 is a wasteful number, since it uses less digits than its factorization.

10570021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137291.

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 10570021 is about 3251.1568710230. The cubic root of 10570021 is about 219.4616381954.

Adding to 10570021 its reverse (12007501), we get a palindrome (22577522).

The spelling of 10570021 in words is "ten million, five hundred seventy thousand, twenty-one".