45122055121 has 24 divisors (see below), whose sum is σ = 53829757440. Its totient is φ = 37489608000.

The previous prime is 45122055119. The next prime is 45122055131. The reversal of 45122055121 is 12155022154.

It is not a de Polignac number, because 45122055121 - 2¹ = 45122055119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45122055121.

It is not an unprimeable number, because it can be changed into a prime (45122055131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67600 + ... + 307918.

It is an arithmetic number, because the mean of its divisors is an integer number (2242906560).

Almost surely, 2^45122055121 is an apocalyptic number.

It is an amenable number.

45122055121 is a deficient number, since it is larger than the sum of its proper divisors (8707702319).

45122055121 is a wasteful number, since it uses less digits than its factorization.

45122055121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240457 (or 240444 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 45122055121 its reverse (12155022154), we get a palindrome (57277077275).

The spelling of 45122055121 in words is "forty-five billion, one hundred twenty-two million, fifty-five thousand, one hundred twenty-one".