20022200010 has 72 divisors (see below), whose sum is σ = 53914917420. Its totient is φ = 5155121664.

The previous prime is 20022199997. The next prime is 20022200021. The reversal of 20022200010 is 1000222002.

It can be written as a sum of positive squares in 6 ways, for example, as 2723900481 + 17298299529 = 52191^2 + 131523^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20022199965 and 20022200001.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 56575 + ... + 207954.

Almost surely, 2^20022200010 is an apocalyptic number.

20022200010 is an abundant number, since it is smaller than the sum of its proper divisors (33892717410).

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

20022200010 is a wasteful number, since it uses less digits than its factorization.

20022200010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264600 (or 264568 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20022200010 its reverse (1000222002), we get a palindrome (21022422012).

The spelling of 20022200010 in words is "twenty billion, twenty-two million, two hundred thousand, ten".