121110202011 has 32 divisors (see below), whose sum is σ = 174769026048. Its totient is φ = 74398262400.

The previous prime is 121110202009. The next prime is 121110202091. The reversal of 121110202011 is 110202011121.

It is not a de Polignac number, because 121110202011 - 2¹ = 121110202009 is a prime.

It is a super-2 number, since 2×121110202011² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121110202091) 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 31 ways as a sum of consecutive naturals, for example, 23010 + ... + 492696.

It is an arithmetic number, because the mean of its divisors is an integer number (5461532064).

Almost surely, 2^121110202011 is an apocalyptic number.

121110202011 is a deficient number, since it is larger than the sum of its proper divisors (53658824037).

121110202011 is a wasteful number, since it uses less digits than its factorization.

121110202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469851.

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

Adding to 121110202011 its reverse (110202011121), we get a palindrome (231312213132).

It can be divided in two parts, 121 and 110202011, that multiplied together give a palindrome (13334443331).

The spelling of 121110202011 in words is "one hundred twenty-one billion, one hundred ten million, two hundred two thousand, eleven".