45045151221 has 8 divisors (see below), whose sum is σ = 68640230464. Its totient is φ = 25740086400.

The previous prime is 45045151213. The next prime is 45045151247. The reversal of 45045151221 is 12215154054.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45045151221 - 2³ = 45045151213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45045151271) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1072503580 + ... + 1072503621.

It is an arithmetic number, because the mean of its divisors is an integer number (8580028808).

Almost surely, 2^45045151221 is an apocalyptic number.

It is an amenable number.

45045151221 is a deficient number, since it is larger than the sum of its proper divisors (23595079243).

45045151221 is a wasteful number, since it uses less digits than its factorization.

45045151221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145007211.

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 45045151221 in words is "forty-five billion, forty-five million, one hundred fifty-one thousand, two hundred twenty-one".