45121204511220 has 96 divisors (see below), whose sum is σ = 133844485598208. Its totient is φ = 11318325102592.

The previous prime is 45121204511209. The next prime is 45121204511269. The reversal of 45121204511220 is 2211540212154.

45121204511220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10273419 + ... + 13992338.

It is an arithmetic number, because the mean of its divisors is an integer number (1394213391648).

Almost surely, 2^{45121204511220} is an apocalyptic number.

It is an amenable number.

45121204511220 is an abundant number, since it is smaller than the sum of its proper divisors (88723281086988).

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

45121204511220 is a wasteful number, since it uses less digits than its factorization.

45121204511220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24267609 (or 24267607 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

Adding to 45121204511220 its reverse (2211540212154), we get a palindrome (47332744723374).

The spelling of 45121204511220 in words is "forty-five trillion, one hundred twenty-one billion, two hundred four million, five hundred eleven thousand, two hundred twenty".