3201001111021 has 16 divisors (see below), whose sum is σ = 3720526128000. Its totient is φ = 2697041737728.

The previous prime is 3201001111013. The next prime is 3201001111039. The reversal of 3201001111021 is 1201111001023.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3201001111021 - 2³ = 3201001111013 is a prime.

It is a super-2 number, since 2×3201001111021² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3201001110992 and 3201001111010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201001115021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6551005 + ... + 7022653.

It is an arithmetic number, because the mean of its divisors is an integer number (232532883000).

Almost surely, 2^{3201001111021} is an apocalyptic number.

It is an amenable number.

3201001111021 is a deficient number, since it is larger than the sum of its proper divisors (519525016979).

3201001111021 is a wasteful number, since it uses less digits than its factorization.

3201001111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488148.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 3201001111021 its reverse (1201111001023), we get a palindrome (4402112112044).

The spelling of 3201001111021 in words is "three trillion, two hundred one billion, one million, one hundred eleven thousand, twenty-one".