122555340513450 has 144 divisors (see below), whose sum is σ = 354914951489280. Its totient is φ = 30140116467840.

The previous prime is 122555340513439. The next prime is 122555340513467. The reversal of 122555340513450 is 54315043555221.

122555340513450 is a `hidden beast` number, since 1 + 2 + 2 + 5 + 5 + 53 + 40 + 513 + 45 + 0 = 666.

It is a super-2 number, since 2×122555340513450² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 122555340513396 and 122555340513405.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3044110 + ... + 15949209.

It is an arithmetic number, because the mean of its divisors is an integer number (2464687163120).

Almost surely, 2^{122555340513450} is an apocalyptic number.

122555340513450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122555340513450 is an abundant number, since it is smaller than the sum of its proper divisors (232359610975830).

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

122555340513450 is a wasteful number, since it uses less digits than its factorization.

122555340513450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18994453 (or 18994445 counting only the distinct ones).

The product of its (nonzero) digits is 1800000, while the sum is 45.

The spelling of 122555340513450 in words is "one hundred twenty-two trillion, five hundred fifty-five billion, three hundred forty million, five hundred thirteen thousand, four hundred fifty".