11122111101 has 4 divisors (see below), whose sum is σ = 14829481472. Its totient is φ = 7414740732.

The previous prime is 11122111079. The next prime is 11122111103. The reversal of 11122111101 is 10111122111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10111122111 = 3 ⋅3370374037.

It is not a de Polignac number, because 11122111101 - 2³³ = 2532176509 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 (11122111103) 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, 1853685181 + ... + 1853685186.

It is an arithmetic number, because the mean of its divisors is an integer number (3707370368).

Almost surely, 2^11122111101 is an apocalyptic number.

It is an amenable number.

11122111101 is a deficient number, since it is larger than the sum of its proper divisors (3707370371).

11122111101 is an equidigital number, since it uses as much as digits as its factorization.

11122111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3707370370.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 11122111101 its reverse (10111122111), we get a palindrome (21233233212).

It can be divided in two parts, 11122111 and 101, that multiplied together give a palindrome (1123333211).

The spelling of 11122111101 in words is "eleven billion, one hundred twenty-two million, one hundred eleven thousand, one hundred one".