40221245355501 has 12 divisors (see below), whose sum is σ = 62383972388352. Its totient is φ = 22983568774488.

The previous prime is 40221245355497. The next prime is 40221245355563. The reversal of 40221245355501 is 10555354212204.

It is not a de Polignac number, because 40221245355501 - 2² = 40221245355497 is a prime.

It is a super-2 number, since 2×40221245355501² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40221245355501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40221245365501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136806956845 + ... + 136806957138.

It is an arithmetic number, because the mean of its divisors is an integer number (5198664365696).

Almost surely, 2^{40221245355501} is an apocalyptic number.

It is an amenable number.

40221245355501 is a deficient number, since it is larger than the sum of its proper divisors (22162727032851).

40221245355501 is a wasteful number, since it uses less digits than its factorization.

40221245355501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273613914000 (or 273613913993 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 39.

Adding to 40221245355501 its reverse (10555354212204), we get a palindrome (50776599567705).

The spelling of 40221245355501 in words is "forty trillion, two hundred twenty-one billion, two hundred forty-five million, three hundred fifty-five thousand, five hundred one".