200220021221020 has 24 divisors (see below), whose sum is σ = 420462320451264. Its totient is φ = 80087955938496.

The previous prime is 200220021220979. The next prime is 200220021221021. The reversal of 200220021221020 is 20122120022002.

It is a junction number, because it is equal to n+sod(n) for n = 200220021220985 and 200220021221003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200220021221021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45985597 + ... + 50150923.

It is an arithmetic number, because the mean of its divisors is an integer number (17519263352136).

Almost surely, 2^{200220021221020} is an apocalyptic number.

200220021221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200220021221020 is an abundant number, since it is smaller than the sum of its proper divisors (220242299230244).

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

200220021221020 is a wasteful number, since it uses less digits than its factorization.

200220021221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6568749 (or 6568747 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 200220021221020 its reverse (20122120022002), we get a palindrome (220342141243022).

The spelling of 200220021221020 in words is "two hundred trillion, two hundred twenty billion, twenty-one million, two hundred twenty-one thousand, twenty".