1020000210221 has 6 divisors (see below), whose sum is σ = 1066276212750. Its totient is φ = 975652374488.

The previous prime is 1020000210217. The next prime is 1020000210253. The reversal of 1020000210221 is 1220120000201.

It is a happy number.

1020000210221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 840063902500 + 179936307721 = 916550^2 + 424189^2 .

It is not a de Polignac number, because 1020000210221 - 2² = 1020000210217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020000210211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 964082846 + ... + 964083903.

It is an arithmetic number, because the mean of its divisors is an integer number (177712702125).

Almost surely, 2^{1020000210221} is an apocalyptic number.

It is an amenable number.

1020000210221 is a deficient number, since it is larger than the sum of its proper divisors (46276002529).

1020000210221 is an equidigital number, since it uses as much as digits as its factorization.

1020000210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928166795 (or 1928166772 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1020000210221 its reverse (1220120000201), we get a palindrome (2240120210422).

The spelling of 1020000210221 in words is "one trillion, twenty billion, two hundred ten thousand, two hundred twenty-one".