120121152512 has 22 divisors (see below), whose sum is σ = 240125001258. Its totient is φ = 60060575744.

The previous prime is 120121152511. The next prime is 120121152527. The reversal of 120121152512 is 215251121021.

It can be written as a sum of positive squares in only one way, i.e., 118931178496 + 1189974016 = 344864^2 + 34496^2 .

It is a super-2 number, since 2×120121152512² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120121152511) 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, 58651883 + ... + 58653930.

Almost surely, 2^120121152512 is an apocalyptic number.

It is an amenable number.

120121152512 is a deficient number, since it is larger than the sum of its proper divisors (120003848746).

120121152512 is an equidigital number, since it uses as much as digits as its factorization.

120121152512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117305833 (or 117305815 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 23.

Adding to 120121152512 its reverse (215251121021), we get a palindrome (335372273533).

The spelling of 120121152512 in words is "one hundred twenty billion, one hundred twenty-one million, one hundred fifty-two thousand, five hundred twelve".