122299742450 has 90 divisors (see below), whose sum is σ = 241880521911. Its totient is φ = 46006879680.

The previous prime is 122299742443. The next prime is 122299742479. The reversal of 122299742450 is 54247992221.

It can be written as a sum of positive squares in 5 ways, for example, as 54553543489 + 67746198961 = 233567^2 + 260281^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=247285.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122299742395 and 122299742404.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 892698782 + ... + 892698918.

Almost surely, 2^122299742450 is an apocalyptic number.

122299742450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122299742450 is a deficient number, since it is larger than the sum of its proper divisors (119580779461).

122299742450 is an frugal number, since it uses more digits than its factorization.

122299742450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 122299742450 in words is "one hundred twenty-two billion, two hundred ninety-nine million, seven hundred forty-two thousand, four hundred fifty".