122312141555545 has 16 divisors (see below), whose sum is σ = 149592756956112. Its totient is φ = 95972128162560.

The previous prime is 122312141555533. The next prime is 122312141555699. The reversal of 122312141555545 is 545555141213221.

It can be written as a sum of positive squares in 8 ways, for example, as 25113759117769 + 97198382437776 = 5011363^2 + 9858924^2 .

It is not a de Polignac number, because 122312141555545 - 2⁴³ = 113516048533337 is a prime.

It is a super-3 number, since 3×122312141555545³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122312141555495 and 122312141555504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74581722 + ... + 76204051.

It is an arithmetic number, because the mean of its divisors is an integer number (9349547309757).

Almost surely, 2^{122312141555545} is an apocalyptic number.

It is an amenable number.

122312141555545 is a deficient number, since it is larger than the sum of its proper divisors (27280615400567).

122312141555545 is a wasteful number, since it uses less digits than its factorization.

122312141555545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150788892.

The product of its digits is 1200000, while the sum is 46.

Adding to 122312141555545 its reverse (545555141213221), we get a palindrome (667867282768766).

The spelling of 122312141555545 in words is "one hundred twenty-two trillion, three hundred twelve billion, one hundred forty-one million, five hundred fifty-five thousand, five hundred forty-five".