201121010111222 has 4 divisors (see below), whose sum is σ = 301681515166836. Its totient is φ = 100560505055610.

The previous prime is 201121010111167. The next prime is 201121010111233. The reversal of 201121010111222 is 222111010121102.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 201121010111222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50280252527804 + ... + 50280252527807.

It is an arithmetic number, because the mean of its divisors is an integer number (75420378791709).

Almost surely, 2^{201121010111222} is an apocalyptic number.

201121010111222 is a deficient number, since it is larger than the sum of its proper divisors (100560505055614).

201121010111222 is a wasteful number, since it uses less digits than its factorization.

201121010111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100560505055613.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 201121010111222 its reverse (222111010121102), we get a palindrome (423232020232324).

The spelling of 201121010111222 in words is "two hundred one trillion, one hundred twenty-one billion, ten million, one hundred eleven thousand, two hundred twenty-two".