12121003012010 has 16 divisors (see below), whose sum is σ = 22175474364072. Its totient is φ = 4768919217600.

The previous prime is 12121003011977. The next prime is 12121003012021. The reversal of 12121003012010 is 1021030012121.

It can be written as a sum of positive squares in 4 ways, for example, as 9360191470249 + 2760811541761 = 3059443^2 + 1661569^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9935247761 + ... + 9935248980.

Almost surely, 2^{12121003012010} is an apocalyptic number.

12121003012010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121003012010 is a deficient number, since it is larger than the sum of its proper divisors (10054471352062).

12121003012010 is a wasteful number, since it uses less digits than its factorization.

12121003012010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19870496809.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12121003012010 its reverse (1021030012121), we get a palindrome (13142033024131).

The spelling of 12121003012010 in words is "twelve trillion, one hundred twenty-one billion, three million, twelve thousand, ten".