122040045508 has 6 divisors (see below), whose sum is σ = 213570079646. Its totient is φ = 61020022752.

The previous prime is 122040045493. The next prime is 122040045509. The reversal of 122040045508 is 805540040221.

It can be written as a sum of positive squares in only one way, i.e., 91347808644 + 30692236864 = 302238^2 + 175192^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 122040045508.

It is not an unprimeable number, because it can be changed into a prime (122040045509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15255005685 + ... + 15255005692.

Almost surely, 2^122040045508 is an apocalyptic number.

It is an amenable number.

122040045508 is a deficient number, since it is larger than the sum of its proper divisors (91530034138).

122040045508 is a wasteful number, since it uses less digits than its factorization.

122040045508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30510011381 (or 30510011379 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 122040045508 its reverse (805540040221), we get a palindrome (927580085729).

The spelling of 122040045508 in words is "one hundred twenty-two billion, forty million, forty-five thousand, five hundred eight".