22000151225 has 12 divisors (see below), whose sum is σ = 29378663916. Its totient is φ = 16246265280.

The previous prime is 22000151219. The next prime is 22000151249. The reversal of 22000151225 is 52215100022.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 9573252649 + 12426898576 = 97843^2 + 111476^2 .

It is not a de Polignac number, because 22000151225 - 2⁶ = 22000151161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22000151197 and 22000151206.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33846062 + ... + 33846711.

It is an arithmetic number, because the mean of its divisors is an integer number (2448221993).

Almost surely, 2^22000151225 is an apocalyptic number.

22000151225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22000151225 is a deficient number, since it is larger than the sum of its proper divisors (7378512691).

22000151225 is a wasteful number, since it uses less digits than its factorization.

22000151225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67692796 (or 67692791 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 22000151225 its reverse (52215100022), we get a palindrome (74215251247).

The spelling of 22000151225 in words is "twenty-two billion, one hundred fifty-one thousand, two hundred twenty-five".