201211120102222 has 4 divisors (see below), whose sum is σ = 301816680153336. Its totient is φ = 100605560051110.

The previous prime is 201211120102103. The next prime is 201211120102271. The reversal of 201211120102222 is 222201021112102.

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 201211120102222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50302780025554 + ... + 50302780025557.

It is an arithmetic number, because the mean of its divisors is an integer number (75454170038334).

Almost surely, 2^{201211120102222} is an apocalyptic number.

201211120102222 is a deficient number, since it is larger than the sum of its proper divisors (100605560051114).

201211120102222 is a wasteful number, since it uses less digits than its factorization.

201211120102222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100605560051113.

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

Adding to 201211120102222 its reverse (222201021112102), we get a palindrome (423412141214324).

The spelling of 201211120102222 in words is "two hundred one trillion, two hundred eleven billion, one hundred twenty million, one hundred two thousand, two hundred twenty-two".