40121021441000 has 32 divisors (see below), whose sum is σ = 93883190174280. Its totient is φ = 16048408576000.

The previous prime is 40121021440933. The next prime is 40121021441027. The reversal of 40121021441000 is 14412012104.

It can be written as a sum of positive squares in 4 ways, for example, as 23190446397316 + 16930575043684 = 4815646^2 + 4114678^2 .

It is a super-2 number, since 2×40121021441000² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20060509721 + ... + 20060511720.

Almost surely, 2^{40121021441000} is an apocalyptic number.

40121021441000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40121021441000 is an abundant number, since it is smaller than the sum of its proper divisors (53762168733280).

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

40121021441000 is a wasteful number, since it uses less digits than its factorization.

40121021441000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40121021462 (or 40121021448 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 40121021441000 its reverse (14412012104), we get a palindrome (40135433453104).

The spelling of 40121021441000 in words is "forty trillion, one hundred twenty-one billion, twenty-one million, four hundred forty-one thousand".