40122020142505 has 8 divisors (see below), whose sum is σ = 55024484766912. Its totient is φ = 27512242383408.

The previous prime is 40122020142493. The next prime is 40122020142509. The reversal of 40122020142505 is 50524102022104.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40122020142505 - 2¹¹ = 40122020140457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40122020142509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573171716287 + ... + 573171716356.

It is an arithmetic number, because the mean of its divisors is an integer number (6878060595864).

Almost surely, 2^{40122020142505} is an apocalyptic number.

It is an amenable number.

40122020142505 is a deficient number, since it is larger than the sum of its proper divisors (14902464624407).

40122020142505 is a wasteful number, since it uses less digits than its factorization.

40122020142505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146343432655.

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 40122020142505 its reverse (50524102022104), we get a palindrome (90646122164609).

The spelling of 40122020142505 in words is "forty trillion, one hundred twenty-two billion, twenty million, one hundred forty-two thousand, five hundred five".