13222405450 has 24 divisors (see below), whose sum is σ = 24626232972. Its totient is φ = 5281960320.

The previous prime is 13222405423. The next prime is 13222405477. The reversal of 13222405450 is 5450422231.

It is an interprime number because it is at equal distance from previous prime (13222405423) and next prime (13222405477).

It can be written as a sum of positive squares in 6 ways, for example, as 8636542489 + 4585862961 = 92933^2 + 67719^2 .

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, 136819 + ... + 212518.

Almost surely, 2^13222405450 is an apocalyptic number.

13222405450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13222405450 is a deficient number, since it is larger than the sum of its proper divisors (11403827522).

13222405450 is a wasteful number, since it uses less digits than its factorization.

13222405450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350106 (or 350101 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 13222405450 its reverse (5450422231), we get a palindrome (18672827681).

The spelling of 13222405450 in words is "thirteen billion, two hundred twenty-two million, four hundred five thousand, four hundred fifty".