121334435472 has 40 divisors (see below), whose sum is σ = 313525897344. Its totient is φ = 40434669184.

The previous prime is 121334435471. The next prime is 121334435491. The reversal of 121334435472 is 274534433121.

It is a self number, because there is not a number n which added to its sum of digits gives 121334435472.

It is not an unprimeable number, because it can be changed into a prime (121334435471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122328 + ... + 507575.

Almost surely, 2^121334435472 is an apocalyptic number.

121334435472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121334435472 is an abundant number, since it is smaller than the sum of its proper divisors (192191461872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121334435472 is a wasteful number, since it uses less digits than its factorization.

121334435472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633927 (or 633921 counting only the distinct ones).

The product of its digits is 241920, while the sum is 39.

Adding to 121334435472 its reverse (274534433121), we get a palindrome (395868868593).

The spelling of 121334435472 in words is "one hundred twenty-one billion, three hundred thirty-four million, four hundred thirty-five thousand, four hundred seventy-two".