122133242513550 has 192 divisors, whose sum is σ = 352264562910720. Its totient is φ = 27777133486080.

The previous prime is 122133242513537. The next prime is 122133242513551. The reversal of 122133242513550 is 55315242331221.

It is a junction number, because it is equal to n+sod(n) for n = 122133242513499 and 122133242513508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122133242513551) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 53685867 + ... + 55914566.

It is an arithmetic number, because the mean of its divisors is an integer number (1834711265160).

Almost surely, 2^{122133242513550} is an apocalyptic number.

122133242513550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122133242513550 is an abundant number, since it is smaller than the sum of its proper divisors (230131320397170).

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

122133242513550 is a wasteful number, since it uses less digits than its factorization.

122133242513550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109600507 (or 109600502 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

Adding to 122133242513550 its reverse (55315242331221), we get a palindrome (177448484844771).

The spelling of 122133242513550 in words is "one hundred twenty-two trillion, one hundred thirty-three billion, two hundred forty-two million, five hundred thirteen thousand, five hundred fifty".