121453800216 has 64 divisors (see below), whose sum is σ = 354092736000. Its totient is φ = 34701083424.

The previous prime is 121453800211. The next prime is 121453800239. The reversal of 121453800216 is 612008354121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121453800211) 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 in 15 ways as a sum of consecutive naturals, for example, 7368700 + ... + 7385163.

It is an arithmetic number, because the mean of its divisors is an integer number (5532699000).

Almost surely, 2^121453800216 is an apocalyptic number.

It is an amenable number.

121453800216 is an abundant number, since it is smaller than the sum of its proper divisors (232638935784).

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

121453800216 is a wasteful number, since it uses less digits than its factorization.

121453800216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14753893 (or 14753875 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 121453800216 in words is "one hundred twenty-one billion, four hundred fifty-three million, eight hundred thousand, two hundred sixteen".