201102211102011 has 4 divisors (see below), whose sum is σ = 268136281469352. Its totient is φ = 134068140734672.

The previous prime is 201102211102007. The next prime is 201102211102021. The reversal of 201102211102011 is 110201112201102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 201102211102011 - 2² = 201102211102007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201102211102021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33517035183666 + ... + 33517035183671.

It is an arithmetic number, because the mean of its divisors is an integer number (67034070367338).

Almost surely, 2^{201102211102011} is an apocalyptic number.

201102211102011 is a deficient number, since it is larger than the sum of its proper divisors (67034070367341).

201102211102011 is an equidigital number, since it uses as much as digits as its factorization.

201102211102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67034070367340.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 201102211102011 its reverse (110201112201102), we get a palindrome (311303323303113).

The spelling of 201102211102011 in words is "two hundred one trillion, one hundred two billion, two hundred eleven million, one hundred two thousand, eleven".