40244557402221 has 32 divisors (see below), whose sum is σ = 57191798378880. Its totient is φ = 25084545398784.

The previous prime is 40244557402207. The next prime is 40244557402243. The reversal of 40244557402221 is 12220475544204.

It is not a de Polignac number, because 40244557402221 - 2⁶ = 40244557402157 is a prime.

It is a super-2 number, since 2×40244557402221² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40244557402121) 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 31 ways as a sum of consecutive naturals, for example, 16207131 + ... + 18524583.

It is an arithmetic number, because the mean of its divisors is an integer number (1787243699340).

Almost surely, 2^{40244557402221} is an apocalyptic number.

It is an amenable number.

40244557402221 is a deficient number, since it is larger than the sum of its proper divisors (16947240976659).

40244557402221 is a wasteful number, since it uses less digits than its factorization.

40244557402221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319725.

The product of its (nonzero) digits is 716800, while the sum is 42.

The spelling of 40244557402221 in words is "forty trillion, two hundred forty-four billion, five hundred fifty-seven million, four hundred two thousand, two hundred twenty-one".