22444401245 has 24 divisors (see below), whose sum is σ = 31342966200. Its totient is φ = 15384348672.

The previous prime is 22444401241. The next prime is 22444401281. The reversal of 22444401245 is 54210444422.

It can be written as a sum of positive squares in 4 ways, for example, as 2691223129 + 19753178116 = 51877^2 + 140546^2 .

It is not a de Polignac number, because 22444401245 - 2² = 22444401241 is a prime.

It is a super-2 number, since 2×22444401245² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22444401241) 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, 651821 + ... + 685389.

It is an arithmetic number, because the mean of its divisors is an integer number (1305956925).

Almost surely, 2^22444401245 is an apocalyptic number.

It is an amenable number.

22444401245 is a deficient number, since it is larger than the sum of its proper divisors (8898564955).

22444401245 is a wasteful number, since it uses less digits than its factorization.

22444401245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36317 (or 36310 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 32.

Adding to 22444401245 its reverse (54210444422), we get a palindrome (76654845667).

The spelling of 22444401245 in words is "twenty-two billion, four hundred forty-four million, four hundred one thousand, two hundred forty-five".