40221543100 has 72 divisors (see below), whose sum is σ = 88373624976. Its totient is φ = 15888000000.

The previous prime is 40221543083. The next prime is 40221543101. The reversal of 40221543100 is 134512204.

It is a super-2 number, since 2×40221543100² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40221543101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4045135 + ... + 4055065.

It is an arithmetic number, because the mean of its divisors is an integer number (1227411458).

Almost surely, 2^40221543100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40221543100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44186812488).

40221543100 is an abundant number, since it is smaller than the sum of its proper divisors (48152081876).

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

40221543100 is a wasteful number, since it uses less digits than its factorization.

40221543100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10447 (or 10440 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The spelling of 40221543100 in words is "forty billion, two hundred twenty-one million, five hundred forty-three thousand, one hundred".