4243221214012 has 48 divisors (see below), whose sum is σ = 8123307945984. Its totient is φ = 1923354720000.

The previous prime is 4243221214007. The next prime is 4243221214039. The reversal of 4243221214012 is 2104121223424.

It is a super-2 number, since 2×4243221214012² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109198387 + ... + 109237237.

It is an arithmetic number, because the mean of its divisors is an integer number (169235582208).

Almost surely, 2^{4243221214012} is an apocalyptic number.

It is an amenable number.

4243221214012 is a deficient number, since it is larger than the sum of its proper divisors (3880086731972).

4243221214012 is a wasteful number, since it uses less digits than its factorization.

4243221214012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45730 (or 45728 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 4243221214012 its reverse (2104121223424), we get a palindrome (6347342437436).

The spelling of 4243221214012 in words is "four trillion, two hundred forty-three billion, two hundred twenty-one million, two hundred fourteen thousand, twelve".