40220222421 has 8 divisors (see below), whose sum is σ = 53725003744. Its totient is φ = 26764461360.

The previous prime is 40220222389. The next prime is 40220222431. The reversal of 40220222421 is 12422202204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40220222421 - 2⁵ = 40220222389 is a prime.

It is a super-2 number, since 2×40220222421² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40220222431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12253150 + ... + 12256431.

It is an arithmetic number, because the mean of its divisors is an integer number (6715625468).

Almost surely, 2^40220222421 is an apocalyptic number.

It is an amenable number.

40220222421 is a deficient number, since it is larger than the sum of its proper divisors (13504781323).

40220222421 is a wasteful number, since it uses less digits than its factorization.

40220222421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24510131.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 40220222421 its reverse (12422202204), we get a palindrome (52642424625).

The spelling of 40220222421 in words is "forty billion, two hundred twenty million, two hundred twenty-two thousand, four hundred twenty-one".