20022212200 has 24 divisors (see below), whose sum is σ = 46551643830. Its totient is φ = 8008884800.

The previous prime is 20022212173. The next prime is 20022212269. The reversal of 20022212200 is 221222002.

It can be written as a sum of positive squares in 3 ways, for example, as 10712664004 + 9309548196 = 103502^2 + 96486^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50055331 + ... + 50055730.

Almost surely, 2^20022212200 is an apocalyptic number.

20022212200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20022212200 is an abundant number, since it is smaller than the sum of its proper divisors (26529431630).

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

20022212200 is a wasteful number, since it uses less digits than its factorization.

20022212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100111077 (or 100111068 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 20022212200 its reverse (221222002), we get a palindrome (20243434202).

The spelling of 20022212200 in words is "twenty billion, twenty-two million, two hundred twelve thousand, two hundred".