45542221217 has 4 divisors (see below), whose sum is σ = 45771076800. Its totient is φ = 45313365636.

The previous prime is 45542221201. The next prime is 45542221237. The reversal of 45542221217 is 71212224554.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45542221217 - 2⁴ = 45542221201 is a prime.

It is a super-2 number, since 2×45542221217² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45542221237) 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, 114427493 + ... + 114427890.

It is an arithmetic number, because the mean of its divisors is an integer number (11442769200).

Almost surely, 2^45542221217 is an apocalyptic number.

It is an amenable number.

45542221217 is a deficient number, since it is larger than the sum of its proper divisors (228855583).

45542221217 is a wasteful number, since it uses less digits than its factorization.

45542221217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228855582.

The product of its digits is 44800, while the sum is 35.

The spelling of 45542221217 in words is "forty-five billion, five hundred forty-two million, two hundred twenty-one thousand, two hundred seventeen".