22020213204900 has 81 divisors (see below), whose sum is σ = 69021576206401. Its totient is φ = 5872019314080.

The previous prime is 22020213204883. The next prime is 22020213204923. The reversal of 22020213204900 is 940231202022.

The square root of 22020213204900 is 4692570.

It is a perfect power (a square), and thus also a powerful number.

22020213204900 is a `hidden beast` number, since 2 + 20 + 20 + 2 + 132 + 0 + 490 + 0 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7927276753764 + 14092936451136 = 2815542^2 + 3754056^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 140698891 + ... + 140855309.

Almost surely, 2^{22020213204900} is an apocalyptic number.

22020213204900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

22020213204900 is the 4692570-th square number.

It is an amenable number.

22020213204900 is an abundant number, since it is smaller than the sum of its proper divisors (47001363001501).

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

22020213204900 is an frugal number, since it uses more digits than its factorization.

22020213204900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312858 (or 156429 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 22020213204900 its reverse (940231202022), we get a palindrome (22960444406922).

The spelling of 22020213204900 in words is "twenty-two trillion, twenty billion, two hundred thirteen million, two hundred four thousand, nine hundred".