12121011120010 has 96 divisors (see below), whose sum is σ = 25228262177280. Its totient is φ = 4181732755200.

The previous prime is 12121011119953. The next prime is 12121011120073. The reversal of 12121011120010 is 1002111012121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2469676 + ... + 5508295.

It is an arithmetic number, because the mean of its divisors is an integer number (262794397680).

Almost surely, 2^{12121011120010} is an apocalyptic number.

12121011120010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121011120010 is an abundant number, since it is smaller than the sum of its proper divisors (13107251057270).

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

12121011120010 is a wasteful number, since it uses less digits than its factorization.

12121011120010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7978064 (or 7978051 counting only the distinct ones).

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

Adding to 12121011120010 its reverse (1002111012121), we get a palindrome (13123122132131).

The spelling of 12121011120010 in words is "twelve trillion, one hundred twenty-one billion, eleven million, one hundred twenty thousand, ten".