201201021211222 has 4 divisors (see below), whose sum is σ = 301801531816836. Its totient is φ = 100600510605610.

The previous prime is 201201021211133. The next prime is 201201021211241. The reversal of 201201021211222 is 222112120102102.

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 201201021211222.

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, 50300255302804 + ... + 50300255302807.

It is an arithmetic number, because the mean of its divisors is an integer number (75450382954209).

Almost surely, 2^{201201021211222} is an apocalyptic number.

201201021211222 is a deficient number, since it is larger than the sum of its proper divisors (100600510605614).

201201021211222 is a wasteful number, since it uses less digits than its factorization.

201201021211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100600510605613.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 201201021211222 its reverse (222112120102102), we get a palindrome (423313141313324).

The spelling of 201201021211222 in words is "two hundred one trillion, two hundred one billion, twenty-one million, two hundred eleven thousand, two hundred twenty-two".