11221112101 has 8 divisors (see below), whose sum is σ = 11596526424. Its totient is φ = 10850542080.

The previous prime is 11221112087. The next prime is 11221112197. The reversal of 11221112101 is 10121112211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 143760100 + 11077352001 = 11990^2 + 105249^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11221112101 - 2⁵ = 11221112069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11521112101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1206366 + ... + 1215631.

It is an arithmetic number, because the mean of its divisors is an integer number (1449565803).

Almost surely, 2^11221112101 is an apocalyptic number.

It is an amenable number.

11221112101 is a deficient number, since it is larger than the sum of its proper divisors (375414323).

11221112101 is a wasteful number, since it uses less digits than its factorization.

11221112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2422151.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11221112101 its reverse (10121112211), we get a palindrome (21342224312).

The spelling of 11221112101 in words is "eleven billion, two hundred twenty-one million, one hundred twelve thousand, one hundred one".