121510754468 has 12 divisors (see below), whose sum is σ = 212651273520. Its totient is φ = 60753247752.

The previous prime is 121510754461. The next prime is 121510754471. The reversal of 121510754468 is 864457015121.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (121510754461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400346 + ... + 635057.

It is an arithmetic number, because the mean of its divisors is an integer number (17720939460).

Almost surely, 2^121510754468 is an apocalyptic number.

It is an amenable number.

121510754468 is a deficient number, since it is larger than the sum of its proper divisors (91140519052).

121510754468 is a wasteful number, since it uses less digits than its factorization.

121510754468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064746 (or 1064744 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 44.

Adding to 121510754468 its reverse (864457015121), we get a palindrome (985967769589).

The spelling of 121510754468 in words is "one hundred twenty-one billion, five hundred ten million, seven hundred fifty-four thousand, four hundred sixty-eight".