3212545021 has 16 divisors (see below), whose sum is σ = 3745004544. Its totient is φ = 2698585344.

The previous prime is 3212545019. The next prime is 3212545031. The reversal of 3212545021 is 1205452123.

It is not a de Polignac number, because 3212545021 - 2¹ = 3212545019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3212545001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358036 + ... + 366898.

It is an arithmetic number, because the mean of its divisors is an integer number (234062784).

Almost surely, 2^3212545021 is an apocalyptic number.

It is an amenable number.

3212545021 is a deficient number, since it is larger than the sum of its proper divisors (532459523).

3212545021 is an equidigital number, since it uses as much as digits as its factorization.

3212545021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9900.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 3212545021 is about 56679.3174006180. The cubic root of 3212545021 is about 1475.5357656877.

Adding to 3212545021 its reverse (1205452123), we get a palindrome (4417997144).

The spelling of 3212545021 in words is "three billion, two hundred twelve million, five hundred forty-five thousand, twenty-one".