40121113420220 has 24 divisors (see below), whose sum is σ = 96290672208864. Its totient is φ = 13755810315456.

The previous prime is 40121113420217. The next prime is 40121113420229. The reversal of 40121113420220 is 2202431112104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40121113420229) 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, 143289690647 + ... + 143289690926.

It is an arithmetic number, because the mean of its divisors is an integer number (4012111342036).

Almost surely, 2^{40121113420220} is an apocalyptic number.

It is an amenable number.

40121113420220 is an abundant number, since it is smaller than the sum of its proper divisors (56169558788644).

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

40121113420220 is a wasteful number, since it uses less digits than its factorization.

40121113420220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286579381589 (or 286579381587 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 40121113420220 its reverse (2202431112104), we get a palindrome (42323544532324).

The spelling of 40121113420220 in words is "forty trillion, one hundred twenty-one billion, one hundred thirteen million, four hundred twenty thousand, two hundred twenty".