121103122011 has 4 divisors (see below), whose sum is σ = 161470829352. Its totient is φ = 80735414672.

The previous prime is 121103122001. The next prime is 121103122097. The reversal of 121103122011 is 110221301121.

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

It is a cyclic number.

It is not a de Polignac number, because 121103122011 - 2⁶ = 121103121947 is a prime.

It is a super-2 number, since 2×121103122011² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121103122001) 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, 20183853666 + ... + 20183853671.

It is an arithmetic number, because the mean of its divisors is an integer number (40367707338).

Almost surely, 2^121103122011 is an apocalyptic number.

121103122011 is a deficient number, since it is larger than the sum of its proper divisors (40367707341).

121103122011 is an equidigital number, since it uses as much as digits as its factorization.

121103122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40367707340.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 121103122011 its reverse (110221301121), we get a palindrome (231324423132).

The spelling of 121103122011 in words is "one hundred twenty-one billion, one hundred three million, one hundred twenty-two thousand, eleven".