3021200001 has 12 divisors (see below), whose sum is σ = 4367151828. Its totient is φ = 2012658144.

The previous prime is 3021199957. The next prime is 3021200003. The reversal of 3021200001 is 1000021203.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2969705025 + 51494976 = 54495^2 + 7176^2 .

It is not a de Polignac number, because 3021200001 - 2⁷ = 3021199873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3021200003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109890 + ... + 134603.

It is an arithmetic number, because the mean of its divisors is an integer number (363929319).

Almost surely, 2^3021200001 is an apocalyptic number.

It is an amenable number.

3021200001 is a deficient number, since it is larger than the sum of its proper divisors (1345951827).

3021200001 is a wasteful number, since it uses less digits than its factorization.

3021200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245872 (or 245869 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 3021200001 is about 54965.4436987459. The cubic root of 3021200001 is about 1445.6388981983.

Adding to 3021200001 its reverse (1000021203), we get a palindrome (4021221204).

The spelling of 3021200001 in words is "three billion, twenty-one million, two hundred thousand, one".