3221111243400 has 96 divisors (see below), whose sum is σ = 10217664584160. Its totient is φ = 838987107840.

The previous prime is 3221111243387. The next prime is 3221111243401. The reversal of 3221111243400 is 43421111223.

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

It is not an unprimeable number, because it can be changed into a prime (3221111243401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62398837 + ... + 62450436.

It is an arithmetic number, because the mean of its divisors is an integer number (106434006085).

Almost surely, 2^{3221111243400} is an apocalyptic number.

3221111243400 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3221111243400 is an abundant number, since it is smaller than the sum of its proper divisors (6996553340760).

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

3221111243400 is a wasteful number, since it uses less digits than its factorization.

3221111243400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124849335 (or 124849326 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 3221111243400 its reverse (43421111223), we get a palindrome (3264532354623).

The spelling of 3221111243400 in words is "three trillion, two hundred twenty-one billion, one hundred eleven million, two hundred forty-three thousand, four hundred".