121435214446 has 32 divisors (see below), whose sum is σ = 224458799040. Its totient is φ = 47982295296.

The previous prime is 121435214441. The next prime is 121435214471. The reversal of 121435214446 is 644412534121.

It is a super-4 number, since 4×121435214446⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121435214441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251551 + ... + 553306.

It is an arithmetic number, because the mean of its divisors is an integer number (7014337470).

Almost surely, 2^121435214446 is an apocalyptic number.

121435214446 is a deficient number, since it is larger than the sum of its proper divisors (103023584594).

121435214446 is a wasteful number, since it uses less digits than its factorization.

121435214446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805708.

The product of its digits is 92160, while the sum is 37.

Adding to 121435214446 its reverse (644412534121), we get a palindrome (765847748567).

The spelling of 121435214446 in words is "one hundred twenty-one billion, four hundred thirty-five million, two hundred fourteen thousand, four hundred forty-six".