12155020422036 has 48 divisors (see below), whose sum is σ = 29003419151616. Its totient is φ = 3960229117824.

The previous prime is 12155020422029. The next prime is 12155020422071. The reversal of 12155020422036 is 63022402055121.

It is a happy number.

12155020422036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12155020422036² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12155020421988 and 12155020422006.

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, 13807831 + ... + 14661726.

It is an arithmetic number, because the mean of its divisors is an integer number (604237898992).

Almost surely, 2^{12155020422036} is an apocalyptic number.

It is an amenable number.

12155020422036 is an abundant number, since it is smaller than the sum of its proper divisors (16848398729580).

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

12155020422036 is a wasteful number, since it uses less digits than its factorization.

12155020422036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28470368 (or 28470366 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 12155020422036 its reverse (63022402055121), we get a palindrome (75177422477157).

The spelling of 12155020422036 in words is "twelve trillion, one hundred fifty-five billion, twenty million, four hundred twenty-two thousand, thirty-six".