42221165044440 has 128 divisors (see below), whose sum is σ = 129621930808320. Its totient is φ = 10996981094400.

The previous prime is 42221165044433. The next prime is 42221165044523. The reversal of 42221165044440 is 4444056112224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4854001 + ... + 10392480.

It is an arithmetic number, because the mean of its divisors is an integer number (1012671334440).

Almost surely, 2^{42221165044440} is an apocalyptic number.

42221165044440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42221165044440 is an abundant number, since it is smaller than the sum of its proper divisors (87400765763880).

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

42221165044440 is a wasteful number, since it uses less digits than its factorization.

42221165044440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15247033 (or 15247029 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 39.

The spelling of 42221165044440 in words is "forty-two trillion, two hundred twenty-one billion, one hundred sixty-five million, forty-four thousand, four hundred forty".