3212201021 has 4 divisors (see below), whose sum is σ = 3217197312. Its totient is φ = 3207204732.

The previous prime is 3212200973. The next prime is 3212201023. The reversal of 3212201021 is 1201022123.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3212201021 - 2²² = 3208006717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3212200987 and 3212201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3212201023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2497181 + ... + 2498466.

It is an arithmetic number, because the mean of its divisors is an integer number (804299328).

Almost surely, 2^3212201021 is an apocalyptic number.

It is an amenable number.

3212201021 is a deficient number, since it is larger than the sum of its proper divisors (4996291).

3212201021 is an equidigital number, since it uses as much as digits as its factorization.

3212201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4996290.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 3212201021 is about 56676.2827027320. The cubic root of 3212201021 is about 1475.4830969138.

Adding to 3212201021 its reverse (1201022123), we get a palindrome (4413223144).

The spelling of 3212201021 in words is "three billion, two hundred twelve million, two hundred one thousand, twenty-one".