20102211000221 has 16 divisors (see below), whose sum is σ = 24328017736704. Its totient is φ = 16215140937984.

The previous prime is 20102211000203. The next prime is 20102211000257. The reversal of 20102211000221 is 12200011220102.

It is a cyclic number.

It is not a de Polignac number, because 20102211000221 - 2³⁸ = 19827333093277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20102211000196 and 20102211000205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102210000221) 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, 8116205 + ... + 10299378.

It is an arithmetic number, because the mean of its divisors is an integer number (1520501108544).

Almost surely, 2^{20102211000221} is an apocalyptic number.

It is an amenable number.

20102211000221 is a deficient number, since it is larger than the sum of its proper divisors (4225806736483).

20102211000221 is a wasteful number, since it uses less digits than its factorization.

20102211000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18424780.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20102211000221 its reverse (12200011220102), we get a palindrome (32302222220323).

The spelling of 20102211000221 in words is "twenty trillion, one hundred two billion, two hundred eleven million, two hundred twenty-one", and thus it is an aban number.