4243221213000 has 256 divisors, whose sum is σ = 16505580349440. Its totient is φ = 881708256000.

The previous prime is 4243221212963. The next prime is 4243221213019. The reversal of 4243221213000 is 3121223424.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8953462 + ... + 9415461.

It is an arithmetic number, because the mean of its divisors is an integer number (64474923240).

Almost surely, 2^{4243221213000} is an apocalyptic number.

4243221213000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4243221213000 is an abundant number, since it is smaller than the sum of its proper divisors (12262359136440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4243221213000 is a wasteful number, since it uses less digits than its factorization.

4243221213000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18368965 (or 18368951 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 4243221213000 its reverse (3121223424), we get a palindrome (4246342436424).

The spelling of 4243221213000 in words is "four trillion, two hundred forty-three billion, two hundred twenty-one million, two hundred thirteen thousand".