22163161240252 has 12 divisors (see below), whose sum is σ = 38786992819960. Its totient is φ = 11081163291696.

The previous prime is 22163161240229. The next prime is 22163161240291. The reversal of 22163161240252 is 25204216136122.

It is a super-2 number, since 2×22163161240252² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104212602 + ... + 104425057.

Almost surely, 2^{22163161240252} is an apocalyptic number.

It is an amenable number.

22163161240252 is a deficient number, since it is larger than the sum of its proper divisors (16623831579708).

22163161240252 is a wasteful number, since it uses less digits than its factorization.

22163161240252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208664220 (or 208664218 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

Adding to 22163161240252 its reverse (25204216136122), we get a palindrome (47367377376374).

The spelling of 22163161240252 in words is "twenty-two trillion, one hundred sixty-three billion, one hundred sixty-one million, two hundred forty thousand, two hundred fifty-two".