121011000121012 has 6 divisors (see below), whose sum is σ = 211769250211778. Its totient is φ = 60505500060504.

The previous prime is 121011000120931. The next prime is 121011000121013. The reversal of 121011000121012 is 210121000110121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 86705075141136 + 34305924979876 = 9311556^2 + 5857126^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121011000120983 and 121011000121001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121011000121013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15126375015123 + ... + 15126375015130.

Almost surely, 2^{121011000121012} is an apocalyptic number.

It is an amenable number.

121011000121012 is a deficient number, since it is larger than the sum of its proper divisors (90758250090766).

121011000121012 is a wasteful number, since it uses less digits than its factorization.

121011000121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30252750030257 (or 30252750030255 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121011000121012 its reverse (210121000110121), we get a palindrome (331132000231133).

The spelling of 121011000121012 in words is "one hundred twenty-one trillion, eleven billion, one hundred twenty-one thousand, twelve".