44201220231 has 24 divisors (see below), whose sum is σ = 68566414464. Its totient is φ = 25254369840.

The previous prime is 44201220227. The next prime is 44201220253. The reversal of 44201220231 is 13202210244.

It is not a de Polignac number, because 44201220231 - 2² = 44201220227 is a prime.

It is a super-2 number, since 2×44201220231² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 44201220198 and 44201220207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44201221231) 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, 1370416 + ... + 1402298.

It is an arithmetic number, because the mean of its divisors is an integer number (2856933936).

Almost surely, 2^44201220231 is an apocalyptic number.

44201220231 is a deficient number, since it is larger than the sum of its proper divisors (24365194233).

44201220231 is a wasteful number, since it uses less digits than its factorization.

44201220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41331 (or 41324 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 44201220231 its reverse (13202210244), we get a palindrome (57403430475).

The spelling of 44201220231 in words is "forty-four billion, two hundred one million, two hundred twenty thousand, two hundred thirty-one".