45212232231 has 12 divisors (see below), whose sum is σ = 66201169008. Its totient is φ = 29728590624.

The previous prime is 45212232217. The next prime is 45212232257. The reversal of 45212232231 is 13223221254.

It is not a de Polignac number, because 45212232231 - 2¹³ = 45212224039 is a prime.

It is a super-2 number, since 2×45212232231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45212232195 and 45212232204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45212232271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34407435 + ... + 34408748.

It is an arithmetic number, because the mean of its divisors is an integer number (5516764084).

Almost surely, 2^45212232231 is an apocalyptic number.

45212232231 is a deficient number, since it is larger than the sum of its proper divisors (20988936777).

45212232231 is a wasteful number, since it uses less digits than its factorization.

45212232231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68816262 (or 68816259 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

Adding to 45212232231 its reverse (13223221254), we get a palindrome (58435453485).

The spelling of 45212232231 in words is "forty-five billion, two hundred twelve million, two hundred thirty-two thousand, two hundred thirty-one".