211020222111222 has 128 divisors (see below), whose sum is σ = 448842690109440. Its totient is φ = 65952423313920.

The previous prime is 211020222111197. The next prime is 211020222111253. The reversal of 211020222111222 is 222111222020112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12967497678 + ... + 12967513950.

It is an arithmetic number, because the mean of its divisors is an integer number (3506583516480).

Almost surely, 2^{211020222111222} is an apocalyptic number.

211020222111222 is an abundant number, since it is smaller than the sum of its proper divisors (237822467998218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211020222111222 is a wasteful number, since it uses less digits than its factorization.

211020222111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18698.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 211020222111222 its reverse (222111222020112), we get a palindrome (433131444131334).

The spelling of 211020222111222 in words is "two hundred eleven trillion, twenty billion, two hundred twenty-two million, one hundred eleven thousand, two hundred twenty-two".