17222431020020 has 12 divisors (see below), whose sum is σ = 36167105142084. Its totient is φ = 6888972408000.

The previous prime is 17222431019917. The next prime is 17222431020029. The reversal of 17222431020020 is 2002013422271.

It can be written as a sum of positive squares in 2 ways, for example, as 4641534154084 + 12580896865936 = 2154422^2 + 3546956^2 .

It is a super-2 number, since 2×17222431020020² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17222431020029) 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, 430560775481 + ... + 430560775520.

It is an arithmetic number, because the mean of its divisors is an integer number (3013925428507).

Almost surely, 2^{17222431020020} is an apocalyptic number.

17222431020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17222431020020 is an abundant number, since it is smaller than the sum of its proper divisors (18944674122064).

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

17222431020020 is a wasteful number, since it uses less digits than its factorization.

17222431020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861121551010 (or 861121551008 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

Adding to 17222431020020 its reverse (2002013422271), we get a palindrome (19224444442291).

The spelling of 17222431020020 in words is "seventeen trillion, two hundred twenty-two billion, four hundred thirty-one million, twenty thousand, twenty".