20002205322 has 72 divisors (see below), whose sum is σ = 49278886020. Its totient is φ = 5852246400.

The previous prime is 20002205303. The next prime is 20002205329. The reversal of 20002205322 is 22350220002.

It can be written as a sum of positive squares in 2 ways, for example, as 19976712921 + 25492401 = 141339^2 + 5049^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20002205295 and 20002205304.

It is not an unprimeable number, because it can be changed into a prime (20002205329) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 95179 + ... + 221502.

Almost surely, 2^20002205322 is an apocalyptic number.

20002205322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20002205322 is an abundant number, since it is smaller than the sum of its proper divisors (29276680698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20002205322 is a wasteful number, since it uses less digits than its factorization.

20002205322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316740 (or 316726 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

Adding to 20002205322 its reverse (22350220002), we get a palindrome (42352425324).

The spelling of 20002205322 in words is "twenty billion, two million, two hundred five thousand, three hundred twenty-two".