201121111201222 has 4 divisors (see below), whose sum is σ = 301681666801836. Its totient is φ = 100560555600610.

The previous prime is 201121111201183. The next prime is 201121111201261. The reversal of 201121111201222 is 222102111121102.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (201121111201183) and next prime (201121111201261).

It is a self number, because there is not a number n which added to its sum of digits gives 201121111201222.

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, 50280277800304 + ... + 50280277800307.

It is an arithmetic number, because the mean of its divisors is an integer number (75420416700459).

Almost surely, 2^{201121111201222} is an apocalyptic number.

201121111201222 is a deficient number, since it is larger than the sum of its proper divisors (100560555600614).

201121111201222 is a wasteful number, since it uses less digits than its factorization.

201121111201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100560555600613.

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

Adding to 201121111201222 its reverse (222102111121102), we get a palindrome (423223222322324).

The spelling of 201121111201222 in words is "two hundred one trillion, one hundred twenty-one billion, one hundred eleven million, two hundred one thousand, two hundred twenty-two".