121011221002011 has 32 divisors (see below), whose sum is σ = 167520563755776. Its totient is φ = 77647377792000.

The previous prime is 121011221001997. The next prime is 121011221002037. The reversal of 121011221002011 is 110200122110121.

It is a happy number.

It is not a de Polignac number, because 121011221002011 - 2⁷ = 121011221001883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121011221000011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15904305 + ... + 22247906.

It is an arithmetic number, because the mean of its divisors is an integer number (5235017617368).

Almost surely, 2^{121011221002011} is an apocalyptic number.

121011221002011 is a deficient number, since it is larger than the sum of its proper divisors (46509342753765).

121011221002011 is a wasteful number, since it uses less digits than its factorization.

121011221002011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38152603.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121011221002011 its reverse (110200122110121), we get a palindrome (231211343112132).

The spelling of 121011221002011 in words is "one hundred twenty-one trillion, eleven billion, two hundred twenty-one million, two thousand, eleven".