45121204511219 has 4 divisors (see below), whose sum is σ = 45188249392296. Its totient is φ = 45054159630144.

The previous prime is 45121204511209. The next prime is 45121204511269. The reversal of 45121204511219 is 91211540212154.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45121204511219 is a prime.

It is a super-2 number, since 2×45121204511219² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45121204511209) 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, 33522439529 + ... + 33522440874.

It is an arithmetic number, because the mean of its divisors is an integer number (11297062348074).

Almost surely, 2^{45121204511219} is an apocalyptic number.

45121204511219 is a deficient number, since it is larger than the sum of its proper divisors (67044881077).

45121204511219 is an equidigital number, since it uses as much as digits as its factorization.

45121204511219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67044881076.

The product of its (nonzero) digits is 28800, while the sum is 38.

The spelling of 45121204511219 in words is "forty-five trillion, one hundred twenty-one billion, two hundred four million, five hundred eleven thousand, two hundred nineteen".