6421202011 has 24 divisors (see below), whose sum is σ = 7736778720. Its totient is φ = 5307466752.

The previous prime is 6421201991. The next prime is 6421202063. The reversal of 6421202011 is 1102021246.

It is not a de Polignac number, because 6421202011 - 2¹³ = 6421193819 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6421202011.

It is not an unprimeable number, because it can be changed into a prime (6421200011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1371771 + ... + 1376443.

It is an arithmetic number, because the mean of its divisors is an integer number (322365780).

Almost surely, 2^6421202011 is an apocalyptic number.

6421202011 is a deficient number, since it is larger than the sum of its proper divisors (1315576709).

6421202011 is a wasteful number, since it uses less digits than its factorization.

6421202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5683 (or 5676 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 6421202011 is about 80132.4030027803. The cubic root of 6421202011 is about 1858.6835031243.

Adding to 6421202011 its reverse (1102021246), we get a palindrome (7523223257).

The spelling of 6421202011 in words is "six billion, four hundred twenty-one million, two hundred two thousand, eleven".