10251021 has 16 divisors (see below), whose sum is σ = 15048000. Its totient is φ = 6155520.

The previous prime is 10251011. The next prime is 10251023. The reversal of 10251021 is 12015201.

10251021 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10251021 - 2¹⁹ = 9726733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10250988 and 10251006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10251023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2355 + ... + 5103.

It is an arithmetic number, because the mean of its divisors is an integer number (940500).

Almost surely, 2^10251021 is an apocalyptic number.

10251021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10251021 is a deficient number, since it is larger than the sum of its proper divisors (4796979).

10251021 is a wasteful number, since it uses less digits than its factorization.

10251021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 10251021 is about 3201.7215681567. The cubic root of 10251021 is about 217.2312865947.

Adding to 10251021 its reverse (12015201), we get a palindrome (22266222).

The spelling of 10251021 in words is "ten million, two hundred fifty-one thousand, twenty-one".