3147221407444 has 6 divisors (see below), whose sum is σ = 5507637463034. Its totient is φ = 1573610703720.

The previous prime is 3147221407361. The next prime is 3147221407453. The reversal of 3147221407444 is 4447041227413.

It can be written as a sum of positive squares in only one way, i.e., 3029730134544 + 117491272900 = 1740612^2 + 342770^2 .

It is a super-2 number, since 2×3147221407444² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3147221407444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393402675927 + ... + 393402675934.

Almost surely, 2^{3147221407444} is an apocalyptic number.

It is an amenable number.

3147221407444 is a deficient number, since it is larger than the sum of its proper divisors (2360416055590).

3147221407444 is a wasteful number, since it uses less digits than its factorization.

3147221407444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786805351865 (or 786805351863 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 43.

The spelling of 3147221407444 in words is "three trillion, one hundred forty-seven billion, two hundred twenty-one million, four hundred seven thousand, four hundred forty-four".