11101221102122 has 4 divisors (see below), whose sum is σ = 16651831653186. Its totient is φ = 5550610551060.

The previous prime is 11101221102107. The next prime is 11101221102241. The reversal of 11101221102122 is 22120112210111.

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

It can be written as a sum of positive squares in only one way, i.e., 11088773460361 + 12447641761 = 3329981^2 + 111569^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11101221102122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775305275529 + ... + 2775305275532.

Almost surely, 2^{11101221102122} is an apocalyptic number.

11101221102122 is a deficient number, since it is larger than the sum of its proper divisors (5550610551064).

11101221102122 is an equidigital number, since it uses as much as digits as its factorization.

11101221102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550610551063.

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

Adding to 11101221102122 its reverse (22120112210111), we get a palindrome (33221333312233).

The spelling of 11101221102122 in words is "eleven trillion, one hundred one billion, two hundred twenty-one million, one hundred two thousand, one hundred twenty-two".