10421012 has 12 divisors (see below), whose sum is σ = 20842080. Its totient is φ = 4466136.

The previous prime is 10421009. The next prime is 10421023. The reversal of 10421012 is 21012401.

10421012 is an admirable number.

It is a super-2 number, since 2×10421012² = 217194982208288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10420984 and 10421002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186062 + ... + 186117.

It is an arithmetic number, because the mean of its divisors is an integer number (1736840).

Almost surely, 2^10421012 is an apocalyptic number.

It is an amenable number.

10421012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10421012 is a wasteful number, since it uses less digits than its factorization.

10421012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372190 (or 372188 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 10421012 is about 3228.1592277953. The cubic root of 10421012 is about 218.4254799489.

Adding to 10421012 its reverse (21012401), we get a palindrome (31433413).

The spelling of 10421012 in words is "ten million, four hundred twenty-one thousand, twelve".