3142221521 has 8 divisors (see below), whose sum is σ = 3283728000. Its totient is φ = 3001122432.

The previous prime is 3142221493. The next prime is 3142221527. The reversal of 3142221521 is 1251222413.

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

It is a de Polignac number, because none of the positive numbers 2^k-3142221521 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3142221527) 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 7 ways as a sum of consecutive naturals, for example, 86021 + ... + 116978.

It is an arithmetic number, because the mean of its divisors is an integer number (410466000).

Almost surely, 2^3142221521 is an apocalyptic number.

It is an amenable number.

3142221521 is a deficient number, since it is larger than the sum of its proper divisors (141506479).

3142221521 is a wasteful number, since it uses less digits than its factorization.

3142221521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203695.

The product of its digits is 960, while the sum is 23.

The square root of 3142221521 is about 56055.5217708300. The cubic root of 3142221521 is about 1464.6896057955.

Adding to 3142221521 its reverse (1251222413), we get a palindrome (4393443934).

The spelling of 3142221521 in words is "three billion, one hundred forty-two million, two hundred twenty-one thousand, five hundred twenty-one".