121120102011 has 24 divisors (see below), whose sum is σ = 171737691120. Its totient is φ = 75914616832.

The previous prime is 121120102007. The next prime is 121120102013. The reversal of 121120102011 is 110201021121.

It is not a de Polignac number, because 121120102011 - 2² = 121120102007 is a prime.

It is a super-2 number, since 2×121120102011² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121120102013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 730255 + ... + 880631.

It is an arithmetic number, because the mean of its divisors is an integer number (7155737130).

Almost surely, 2^121120102011 is an apocalyptic number.

121120102011 is a deficient number, since it is larger than the sum of its proper divisors (50617589109).

121120102011 is a wasteful number, since it uses less digits than its factorization.

121120102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151343 (or 151326 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121120102011 its reverse (110201021121), we get a palindrome (231321123132).

The spelling of 121120102011 in words is "one hundred twenty-one billion, one hundred twenty million, one hundred two thousand, eleven".