121110101011 has 8 divisors (see below), whose sum is σ = 125153615664. Its totient is φ = 117122359200.

The previous prime is 121110100961. The next prime is 121110101027. The reversal of 121110101011 is 110101011121.

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 121110101011 - 2²⁷ = 120975883283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121110101051) 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 7 ways as a sum of consecutive naturals, for example, 13938796 + ... + 13947481.

It is an arithmetic number, because the mean of its divisors is an integer number (15644201958).

Almost surely, 2^121110101011 is an apocalyptic number.

121110101011 is a deficient number, since it is larger than the sum of its proper divisors (4043514653).

121110101011 is a wasteful number, since it uses less digits than its factorization.

121110101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27886421.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 121110101011 its reverse (110101011121), we get a palindrome (231211112132).

It can be divided in two parts, 121 and 110101011, that multiplied together give a palindrome (13322222331).

The spelling of 121110101011 in words is "one hundred twenty-one billion, one hundred ten million, one hundred one thousand, eleven".