121422010144 has 12 divisors (see below), whose sum is σ = 239049582534. Its totient is φ = 60711005056.

The previous prime is 121422010141. The next prime is 121422010169. The reversal of 121422010144 is 441010224121.

It can be written as a sum of positive squares in only one way, i.e., 119431065744 + 1990944400 = 345588^2 + 44620^2 .

It is not an unprimeable number, because it can be changed into a prime (121422010141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1897218877 + ... + 1897218940.

Almost surely, 2^121422010144 is an apocalyptic number.

It is an amenable number.

121422010144 is a deficient number, since it is larger than the sum of its proper divisors (117627572390).

121422010144 is an equidigital number, since it uses as much as digits as its factorization.

121422010144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3794437827 (or 3794437819 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 121422010144 its reverse (441010224121), we get a palindrome (562432234265).

The spelling of 121422010144 in words is "one hundred twenty-one billion, four hundred twenty-two million, ten thousand, one hundred forty-four".