40424021322021 has 12 divisors (see below), whose sum is σ = 59632598830272. Its totient is φ = 26375957174376.

The previous prime is 40424021322011. The next prime is 40424021322029. The reversal of 40424021322021 is 12022312042404.

It is a happy number.

40424021322021 is a `hidden beast` number, since 4 + 0 + 4 + 2 + 402 + 13 + 220 + 21 = 666.

It is not a de Polignac number, because 40424021322021 - 2⁵ = 40424021321989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40424021322029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47782530691 + ... + 47782531536.

It is an arithmetic number, because the mean of its divisors is an integer number (4969383235856).

Almost surely, 2^{40424021322021} is an apocalyptic number.

It is an amenable number.

40424021322021 is a deficient number, since it is larger than the sum of its proper divisors (19208577508251).

40424021322021 is a wasteful number, since it uses less digits than its factorization.

40424021322021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95565062280 (or 95565062277 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 40424021322021 its reverse (12022312042404), we get a palindrome (52446333364425).

The spelling of 40424021322021 in words is "forty trillion, four hundred twenty-four billion, twenty-one million, three hundred twenty-two thousand, twenty-one".