121560622126 has 16 divisors (see below), whose sum is σ = 182579000400. Its totient is φ = 60700989888.

The previous prime is 121560622111. The next prime is 121560622129. The reversal of 121560622126 is 621226065121.

It is a junction number, because it is equal to n+sod(n) for n = 121560622091 and 121560622100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121560622129) 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 in 7 ways as a sum of consecutive naturals, for example, 12324985 + ... + 12334843.

It is an arithmetic number, because the mean of its divisors is an integer number (11411187525).

Almost surely, 2^121560622126 is an apocalyptic number.

121560622126 is a deficient number, since it is larger than the sum of its proper divisors (61018378274).

121560622126 is an equidigital number, since it uses as much as digits as its factorization.

121560622126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17283.

The product of its (nonzero) digits is 17280, while the sum is 34.

Adding to 121560622126 its reverse (621226065121), we get a palindrome (742786687247).

The spelling of 121560622126 in words is "one hundred twenty-one billion, five hundred sixty million, six hundred twenty-two thousand, one hundred twenty-six".