11122121001111 has 8 divisors (see below), whose sum is σ = 14830173419904. Its totient is φ = 7414407958200.

The previous prime is 11122121001053. The next prime is 11122121001113. The reversal of 11122121001111 is 11110012122111.

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

It is a de Polignac number, because none of the positive numbers 2^k-11122121001111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122121001113) 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, 84767491 + ... + 84898596.

It is an arithmetic number, because the mean of its divisors is an integer number (1853771677488).

Almost surely, 2^{11122121001111} is an apocalyptic number.

11122121001111 is a deficient number, since it is larger than the sum of its proper divisors (3708052418793).

11122121001111 is a wasteful number, since it uses less digits than its factorization.

11122121001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169687941.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11122121001111 its reverse (11110012122111), we get a palindrome (22232133123222).

The spelling of 11122121001111 in words is "eleven trillion, one hundred twenty-two billion, one hundred twenty-one million, one thousand, one hundred eleven".