3221012012144 has 40 divisors (see below), whose sum is σ = 6895107568800. Its totient is φ = 1449867296768.

The previous prime is 3221012012131. The next prime is 3221012012173. The reversal of 3221012012144 is 4412102101223.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257427569 + ... + 257440080.

It is an arithmetic number, because the mean of its divisors is an integer number (172377689220).

Almost surely, 2^{3221012012144} is an apocalyptic number.

3221012012144 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

3221012012144 is an abundant number, since it is smaller than the sum of its proper divisors (3674095556656).

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

3221012012144 is a wasteful number, since it uses less digits than its factorization.

3221012012144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514867697 (or 514867691 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 3221012012144 its reverse (4412102101223), we get a palindrome (7633114113367).

The spelling of 3221012012144 in words is "three trillion, two hundred twenty-one billion, twelve million, twelve thousand, one hundred forty-four".