211021121011222 has 16 divisors (see below), whose sum is σ = 330635494202112. Its totient is φ = 100818777545640.

The previous prime is 211021121011187. The next prime is 211021121011303. The reversal of 211021121011222 is 222110121120112.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 211021121011222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2371938804 + ... + 2372027767.

It is an arithmetic number, because the mean of its divisors is an integer number (20664718387632).

Almost surely, 2^{211021121011222} is an apocalyptic number.

211021121011222 is a deficient number, since it is larger than the sum of its proper divisors (119614373190890).

211021121011222 is a wasteful number, since it uses less digits than its factorization.

211021121011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4743967563.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 211021121011222 its reverse (222110121120112), we get a palindrome (433131242131334).

The spelling of 211021121011222 in words is "two hundred eleven trillion, twenty-one billion, one hundred twenty-one million, eleven thousand, two hundred twenty-two".