3531444221252 has 6 divisors (see below), whose sum is σ = 6180027387198. Its totient is φ = 1765722110624.

The previous prime is 3531444221209. The next prime is 3531444221309. The reversal of 3531444221252 is 2521224441353.

It can be written as a sum of positive squares in only one way, i.e., 1935481958656 + 1595962262596 = 1391216^2 + 1263314^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 441430527653 + ... + 441430527660.

It is an arithmetic number, because the mean of its divisors is an integer number (1030004564533).

Almost surely, 2^{3531444221252} is an apocalyptic number.

It is an amenable number.

3531444221252 is a deficient number, since it is larger than the sum of its proper divisors (2648583165946).

3531444221252 is a wasteful number, since it uses less digits than its factorization.

3531444221252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882861055317 (or 882861055315 counting only the distinct ones).

The product of its digits is 230400, while the sum is 38.

The spelling of 3531444221252 in words is "three trillion, five hundred thirty-one billion, four hundred forty-four million, two hundred twenty-one thousand, two hundred fifty-two".