211021101222 has 32 divisors (see below), whose sum is σ = 433753999872. Its totient is φ = 68391078624.

The previous prime is 211021101217. The next prime is 211021101251. The reversal of 211021101222 is 222101120112.

211021101222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18088 + ... + 649899.

It is an arithmetic number, because the mean of its divisors is an integer number (13554812496).

Almost surely, 2^211021101222 is an apocalyptic number.

211021101222 is an abundant number, since it is smaller than the sum of its proper divisors (222732898650).

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

211021101222 is a wasteful number, since it uses less digits than its factorization.

211021101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669452.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 211021101222 its reverse (222101120112), we get a palindrome (433122221334).

The spelling of 211021101222 in words is "two hundred eleven billion, twenty-one million, one hundred one thousand, two hundred twenty-two".