11100121121011 has 8 divisors (see below), whose sum is σ = 11965481877440. Its totient is φ = 10236403976832.

The previous prime is 11100121120981. The next prime is 11100121121057. The reversal of 11100121121011 is 11012112100111.

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 11100121121011 - 2²⁹ = 11099584250099 is a prime.

It is a super-2 number, since 2×11100121121011² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 11100121120982 and 11100121121000.

It is not an unprimeable number, because it can be changed into a prime (11100121121311) 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, 410889030 + ... + 410916043.

It is an arithmetic number, because the mean of its divisors is an integer number (1495685234680).

Almost surely, 2^{11100121121011} is an apocalyptic number.

11100121121011 is a deficient number, since it is larger than the sum of its proper divisors (865360756429).

11100121121011 is a wasteful number, since it uses less digits than its factorization.

11100121121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821806125.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 11100121121011 its reverse (11012112100111), we get a palindrome (22112233221122).

The spelling of 11100121121011 in words is "eleven trillion, one hundred billion, one hundred twenty-one million, one hundred twenty-one thousand, eleven".