40222022244421 has 4 divisors (see below), whose sum is σ = 40223218899052. Its totient is φ = 40220825589792.

The previous prime is 40222022244409. The next prime is 40222022244433. The reversal of 40222022244421 is 12444222022204.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (40222022244409) and next prime (40222022244433).

It can be written as a sum of positive squares in 2 ways, for example, as 13520402540100 + 26701619704321 = 3677010^2 + 5167361^2 .

It is a cyclic number.

It is not a de Polignac number, because 40222022244421 - 2¹⁵ = 40222022211653 is a prime.

It is a super-2 number, since 2×40222022244421² (a number of 28 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 (40222022241421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 598276896 + ... + 598344121.

It is an arithmetic number, because the mean of its divisors is an integer number (10055804724763).

Almost surely, 2^{40222022244421} is an apocalyptic number.

It is an amenable number.

40222022244421 is a deficient number, since it is larger than the sum of its proper divisors (1196654631).

40222022244421 is a wasteful number, since it uses less digits than its factorization.

40222022244421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196654630.

The product of its (nonzero) digits is 32768, while the sum is 31.

Adding to 40222022244421 its reverse (12444222022204), we get a palindrome (52666244266625).

The spelling of 40222022244421 in words is "forty trillion, two hundred twenty-two billion, twenty-two million, two hundred forty-four thousand, four hundred twenty-one".