3211200421 has 16 divisors (see below), whose sum is σ = 3902693760. Its totient is φ = 2601789120.

The previous prime is 3211200413. The next prime is 3211200427. The reversal of 3211200421 is 1240021123.

It is a cyclic number.

It is not a de Polignac number, because 3211200421 - 2³ = 3211200413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3211200395 and 3211200404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3211200427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383025 + ... + 391318.

It is an arithmetic number, because the mean of its divisors is an integer number (243918360).

Almost surely, 2^3211200421 is an apocalyptic number.

It is an amenable number.

3211200421 is a deficient number, since it is larger than the sum of its proper divisors (691493339).

3211200421 is a wasteful number, since it uses less digits than its factorization.

3211200421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774396.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 3211200421 is about 56667.4546896188. The cubic root of 3211200421 is about 1475.3298767697.

Adding to 3211200421 its reverse (1240021123), we get a palindrome (4451221544).

The spelling of 3211200421 in words is "three billion, two hundred eleven million, two hundred thousand, four hundred twenty-one".