201121111211222 has 8 divisors (see below), whose sum is σ = 301682785417272. Its totient is φ = 100560182738800.

The previous prime is 201121111211219. The next prime is 201121111211233. The reversal of 201121111211222 is 222112111121102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 201121111211194 and 201121111211203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185758679 + ... + 186838242.

It is an arithmetic number, because the mean of its divisors is an integer number (37710348177159).

Almost surely, 2^{201121111211222} is an apocalyptic number.

201121111211222 is a deficient number, since it is larger than the sum of its proper divisors (100561674206050).

201121111211222 is a wasteful number, since it uses less digits than its factorization.

201121111211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372866814.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 201121111211222 its reverse (222112111121102), we get a palindrome (423233222332324).

The spelling of 201121111211222 in words is "two hundred one trillion, one hundred twenty-one billion, one hundred eleven million, two hundred eleven thousand, two hundred twenty-two".