40220041421 has 16 divisors (see below), whose sum is σ = 47694425088. Its totient is φ = 33189350400.

The previous prime is 40220041409. The next prime is 40220041423. The reversal of 40220041421 is 12414002204.

It is a cyclic number.

It is not a de Polignac number, because 40220041421 - 2¹⁸ = 40219779277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40220041393 and 40220041402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40220041423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 438290 + ... + 522051.

It is an arithmetic number, because the mean of its divisors is an integer number (2980901568).

Almost surely, 2^40220041421 is an apocalyptic number.

It is an amenable number.

40220041421 is a deficient number, since it is larger than the sum of its proper divisors (7474383667).

40220041421 is a wasteful number, since it uses less digits than its factorization.

40220041421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960572.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 40220041421 its reverse (12414002204), we get a palindrome (52634043625).

The spelling of 40220041421 in words is "forty billion, two hundred twenty million, forty-one thousand, four hundred twenty-one".