121011570012 has 96 divisors (see below), whose sum is σ = 290215296000. Its totient is φ = 39233601792.

The previous prime is 121011569993. The next prime is 121011570047. The reversal of 121011570012 is 210075110121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20721789 + ... + 20727627.

It is an arithmetic number, because the mean of its divisors is an integer number (3023076000).

Almost surely, 2^121011570012 is an apocalyptic number.

121011570012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121011570012 is an abundant number, since it is smaller than the sum of its proper divisors (169203725988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121011570012 is a wasteful number, since it uses less digits than its factorization.

121011570012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6235 (or 6233 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 21.

Adding to 121011570012 its reverse (210075110121), we get a palindrome (331086680133).

The spelling of 121011570012 in words is "one hundred twenty-one billion, eleven million, five hundred seventy thousand, twelve".