1020211000221 has 16 divisors (see below), whose sum is σ = 1554947784704. Its totient is φ = 582850009584.

The previous prime is 1020211000199. The next prime is 1020211000301. The reversal of 1020211000221 is 1220001120201.

It is not a de Polignac number, because 1020211000221 - 2⁷ = 1020211000093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1020211000197 and 1020211000206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020211000121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5222845 + ... + 5414658.

It is an arithmetic number, because the mean of its divisors is an integer number (97184236544).

Almost surely, 2^{1020211000221} is an apocalyptic number.

It is an amenable number.

1020211000221 is a deficient number, since it is larger than the sum of its proper divisors (534736784483).

1020211000221 is a wasteful number, since it uses less digits than its factorization.

1020211000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10642080.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1020211000221 its reverse (1220001120201), we get a palindrome (2240212120422).

The spelling of 1020211000221 in words is "one trillion, twenty billion, two hundred eleven million, two hundred twenty-one", and thus it is an aban number.