10000002021 has 32 divisors (see below), whose sum is σ = 14285196288. Its totient is φ = 6200294400.

The previous prime is 10000002011. The next prime is 10000002037. The reversal of 10000002021 is 12020000001.

It is a happy number.

It is not a de Polignac number, because 10000002021 - 2⁵ = 10000001989 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000002011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3155980 + ... + 3159146.

It is an arithmetic number, because the mean of its divisors is an integer number (446412384).

Almost surely, 2^10000002021 is an apocalyptic number.

It is an amenable number.

10000002021 is a deficient number, since it is larger than the sum of its proper divisors (4285194267).

10000002021 is a wasteful number, since it uses less digits than its factorization.

10000002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3901.

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 10000002021 its reverse (12020000001), we get a palindrome (22020002022).

The spelling of 10000002021 in words is "ten billion, two thousand, twenty-one".