1440216221372 has 6 divisors (see below), whose sum is σ = 2520378387408. Its totient is φ = 720108110684.

The previous prime is 1440216221347. The next prime is 1440216221377. The reversal of 1440216221372 is 2731226120441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440216221377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180027027668 + ... + 180027027675.

It is an arithmetic number, because the mean of its divisors is an integer number (420063064568).

Almost surely, 2^{1440216221372} is an apocalyptic number.

It is an amenable number.

1440216221372 is a deficient number, since it is larger than the sum of its proper divisors (1080162166036).

1440216221372 is a wasteful number, since it uses less digits than its factorization.

1440216221372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360054055347 (or 360054055345 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The spelling of 1440216221372 in words is "one trillion, four hundred forty billion, two hundred sixteen million, two hundred twenty-one thousand, three hundred seventy-two".