40221342220340 has 48 divisors (see below), whose sum is σ = 88143496939008. Its totient is φ = 15387936182784.

The previous prime is 40221342220331. The next prime is 40221342220369. The reversal of 40221342220340 is 4302224312204.

It is a super-2 number, since 2×40221342220340² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3339749 + ... + 9570611.

It is an arithmetic number, because the mean of its divisors is an integer number (1836322852896).

Almost surely, 2^{40221342220340} is an apocalyptic number.

It is an amenable number.

40221342220340 is an abundant number, since it is smaller than the sum of its proper divisors (47922154718668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40221342220340 is a wasteful number, since it uses less digits than its factorization.

40221342220340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6244928 (or 6244926 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 40221342220340 its reverse (4302224312204), we get a palindrome (44523566532544).

The spelling of 40221342220340 in words is "forty trillion, two hundred twenty-one billion, three hundred forty-two million, two hundred twenty thousand, three hundred forty".