200220001201021 has 8 divisors (see below), whose sum is σ = 207126554293080. Its totient is φ = 193313609116992.

The previous prime is 200220001201013. The next prime is 200220001201049. The reversal of 200220001201021 is 120102100022002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 40017187935396 + 160202813265625 = 6325914^2 + 12657125^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200220001201021 - 2³ = 200220001201013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200220001200992 and 200220001201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200220001201061) 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, 37719330 + ... + 42698803.

It is an arithmetic number, because the mean of its divisors is an integer number (25890819286635).

Almost surely, 2^{200220001201021} is an apocalyptic number.

It is an amenable number.

200220001201021 is a deficient number, since it is larger than the sum of its proper divisors (6906553092059).

200220001201021 is an equidigital number, since it uses as much as digits as its factorization.

200220001201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80504015.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200220001201021 its reverse (120102100022002), we get a palindrome (320322101223023).

The spelling of 200220001201021 in words is "two hundred trillion, two hundred twenty billion, one million, two hundred one thousand, twenty-one".