211120010222221 has 16 divisors (see below), whose sum is σ = 221446500663168. Its totient is φ = 200889402436800.

The previous prime is 211120010222171. The next prime is 211120010222293. The reversal of 211120010222221 is 122222010021112.

It is a cyclic number.

It is not a de Polignac number, because 211120010222221 - 2⁴¹ = 208920986966669 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 (211120010222321) 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, 31473766 + ... + 37587736.

It is an arithmetic number, because the mean of its divisors is an integer number (13840406291448).

Almost surely, 2^{211120010222221} is an apocalyptic number.

It is an amenable number.

211120010222221 is a deficient number, since it is larger than the sum of its proper divisors (10326490440947).

211120010222221 is a wasteful number, since it uses less digits than its factorization.

211120010222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6121812.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 211120010222221 its reverse (122222010021112), we get a palindrome (333342020243333).

The spelling of 211120010222221 in words is "two hundred eleven trillion, one hundred twenty billion, ten million, two hundred twenty-two thousand, two hundred twenty-one".