40024021221400 has 24 divisors (see below), whose sum is σ = 93055849340220. Its totient is φ = 16009608488480.

The previous prime is 40024021221277. The next prime is 40024021221479. The reversal of 40024021221400 is 412212042004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100060052854 + ... + 100060053253.

Almost surely, 2^{40024021221400} is an apocalyptic number.

40024021221400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40024021221400 is an abundant number, since it is smaller than the sum of its proper divisors (53031828118820).

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

40024021221400 is a wasteful number, since it uses less digits than its factorization.

40024021221400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200120106123 (or 200120106114 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 40024021221400 its reverse (412212042004), we get a palindrome (40436233263404).

The spelling of 40024021221400 in words is "forty trillion, twenty-four billion, twenty-one million, two hundred twenty-one thousand, four hundred".