3210040221 has 8 divisors (see below), whose sum is σ = 4280778240. Its totient is φ = 2139664512.

The previous prime is 3210040219. The next prime is 3210040231. The reversal of 3210040221 is 1220400123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3210040221 - 2¹ = 3210040219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3210040221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3210040231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69181 + ... + 105858.

It is an arithmetic number, because the mean of its divisors is an integer number (535097280).

Almost surely, 2^3210040221 is an apocalyptic number.

It is an amenable number.

3210040221 is a deficient number, since it is larger than the sum of its proper divisors (1070738019).

3210040221 is a wasteful number, since it uses less digits than its factorization.

3210040221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181155.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 3210040221 is about 56657.2168483416. The cubic root of 3210040221 is about 1475.1521775003.

Adding to 3210040221 its reverse (1220400123), we get a palindrome (4430440344).

The spelling of 3210040221 in words is "three billion, two hundred ten million, forty thousand, two hundred twenty-one".