3102001221 has 8 divisors (see below), whose sum is σ = 4512001824. Its totient is φ = 1880000720.

The previous prime is 3102001187. The next prime is 3102001241. The reversal of 3102001221 is 1221002013.

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

It is a cyclic number.

It is not a de Polignac number, because 3102001221 - 2⁶ = 3102001157 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3102001197 and 3102001206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3102001241) 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, 46999986 + ... + 47000051.

It is an arithmetic number, because the mean of its divisors is an integer number (564000228).

Almost surely, 2^3102001221 is an apocalyptic number.

It is an amenable number.

3102001221 is a deficient number, since it is larger than the sum of its proper divisors (1410000603).

3102001221 is a wasteful number, since it uses less digits than its factorization.

3102001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94000051.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 3102001221 is about 55695.6122239445. The cubic root of 3102001221 is about 1458.4134296042.

Adding to 3102001221 its reverse (1221002013), we get a palindrome (4323003234).

The spelling of 3102001221 in words is "three billion, one hundred two million, one thousand, two hundred twenty-one".