40221031512 has 16 divisors (see below), whose sum is σ = 100552578840. Its totient is φ = 13407010496.

The previous prime is 40221031457. The next prime is 40221031517. The reversal of 40221031512 is 21513012204.

40221031512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40221031512² (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 (40221031517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837938133 + ... + 837938180.

Almost surely, 2^40221031512 is an apocalyptic number.

It is an amenable number.

40221031512 is an abundant number, since it is smaller than the sum of its proper divisors (60331547328).

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

40221031512 is a wasteful number, since it uses less digits than its factorization.

40221031512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675876322 (or 1675876318 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 40221031512 its reverse (21513012204), we get a palindrome (61734043716).

The spelling of 40221031512 in words is "forty billion, two hundred twenty-one million, thirty-one thousand, five hundred twelve".