20132213224 has 8 divisors (see below), whose sum is σ = 37747899810. Its totient is φ = 10066106608.

The previous prime is 20132213219. The next prime is 20132213251. The reversal of 20132213224 is 42231223102.

It can be written as a sum of positive squares in only one way, i.e., 14284552324 + 5847660900 = 119518^2 + 76470^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 20132213195 and 20132213204.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1258263319 + ... + 1258263334.

Almost surely, 2^20132213224 is an apocalyptic number.

It is an amenable number.

20132213224 is a deficient number, since it is larger than the sum of its proper divisors (17615686586).

20132213224 is a wasteful number, since it uses less digits than its factorization.

20132213224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2516526659 (or 2516526655 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20132213224 its reverse (42231223102), we get a palindrome (62363436326).

The spelling of 20132213224 in words is "twenty billion, one hundred thirty-two million, two hundred thirteen thousand, two hundred twenty-four".