4351202221012 has 6 divisors (see below), whose sum is σ = 7614603886778. Its totient is φ = 2175601110504.

The previous prime is 4351202221001. The next prime is 4351202221027. The reversal of 4351202221012 is 2101222021534.

It can be written as a sum of positive squares in only one way, i.e., 2700480902596 + 1650721318416 = 1643314^2 + 1284804^2 .

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, 543900277623 + ... + 543900277630.

Almost surely, 2^{4351202221012} is an apocalyptic number.

It is an amenable number.

4351202221012 is a deficient number, since it is larger than the sum of its proper divisors (3263401665766).

4351202221012 is a wasteful number, since it uses less digits than its factorization.

4351202221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087800555257 (or 1087800555255 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 4351202221012 its reverse (2101222021534), we get a palindrome (6452424242546).

The spelling of 4351202221012 in words is "four trillion, three hundred fifty-one billion, two hundred two million, two hundred twenty-one thousand, twelve".