40420541201021 has 16 divisors (see below), whose sum is σ = 42489107633280. Its totient is φ = 38378005079040.

The previous prime is 40420541200997. The next prime is 40420541201041. The reversal of 40420541201021 is 12010214502404.

It is not a de Polignac number, because 40420541201021 - 2⁶ = 40420541200957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40420541201041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16505621 + ... + 18795653.

It is an arithmetic number, because the mean of its divisors is an integer number (2655569227080).

Almost surely, 2^{40420541201021} is an apocalyptic number.

It is an amenable number.

40420541201021 is a deficient number, since it is larger than the sum of its proper divisors (2068566432259).

40420541201021 is a wasteful number, since it uses less digits than its factorization.

40420541201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295716.

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 40420541201021 its reverse (12010214502404), we get a palindrome (52430755703425).

The spelling of 40420541201021 in words is "forty trillion, four hundred twenty billion, five hundred forty-one million, two hundred one thousand, twenty-one".