40122543115512 has 384 divisors, whose sum is σ = 131138661850560. Its totient is φ = 10917623439360.

The previous prime is 40122543115481. The next prime is 40122543115517. The reversal of 40122543115512 is 21551134522104.

40122543115512 is a `hidden beast` number, since 4 + 0 + 1 + 2 + 25 + 4 + 3 + 115 + 512 = 666.

It is a super-2 number, since 2×40122543115512² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40122543115517) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3534086028 + ... + 3534097380.

Almost surely, 2^{40122543115512} 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 40122543115512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65569330925280).

40122543115512 is an abundant number, since it is smaller than the sum of its proper divisors (91016118735048).

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

40122543115512 is a wasteful number, since it uses less digits than its factorization.

40122543115512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20703 (or 20696 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

Adding to 40122543115512 its reverse (21551134522104), we get a palindrome (61673677637616).

The spelling of 40122543115512 in words is "forty trillion, one hundred twenty-two billion, five hundred forty-three million, one hundred fifteen thousand, five hundred twelve".