201011211101222 has 4 divisors (see below), whose sum is σ = 301516816651836. Its totient is φ = 100505605550610.

The previous prime is 201011211101159. The next prime is 201011211101257. The reversal of 201011211101222 is 222101112110102.

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 201011211101222.

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, 50252802775304 + ... + 50252802775307.

It is an arithmetic number, because the mean of its divisors is an integer number (75379204162959).

Almost surely, 2^{201011211101222} is an apocalyptic number.

201011211101222 is a deficient number, since it is larger than the sum of its proper divisors (100505605550614).

201011211101222 is a wasteful number, since it uses less digits than its factorization.

201011211101222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100505605550613.

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

Adding to 201011211101222 its reverse (222101112110102), we get a palindrome (423112323211324).

The spelling of 201011211101222 in words is "two hundred one trillion, eleven billion, two hundred eleven million, one hundred one thousand, two hundred twenty-two".