1000021052 has 12 divisors (see below), whose sum is σ = 1797335400. Its totient is φ = 486496656.

The previous prime is 1000021027. The next prime is 1000021069. The reversal of 1000021052 is 2501200001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3378302 + ... + 3378597.

It is an arithmetic number, because the mean of its divisors is an integer number (149777950).

Almost surely, 2^1000021052 is an apocalyptic number.

It is an amenable number.

1000021052 is a deficient number, since it is larger than the sum of its proper divisors (797314348).

1000021052 is a wasteful number, since it uses less digits than its factorization.

1000021052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6756940 (or 6756938 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1000021052 is about 31623.1094612785. The cubic root of 1000021052 is about 1000.0070172841.

Adding to 1000021052 its reverse (2501200001), we get a palindrome (3501221053).

The spelling of 1000021052 in words is "one billion, twenty-one thousand, fifty-two".