12121011210010 has 32 divisors (see below), whose sum is σ = 21901592788992. Its totient is φ = 4829798010240.

The previous prime is 12121011209971. The next prime is 12121011210043. The reversal of 12121011210010 is 1001211012121.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 9466287 + ... + 10670173.

It is an arithmetic number, because the mean of its divisors is an integer number (684424774656).

Almost surely, 2^{12121011210010} is an apocalyptic number.

12121011210010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121011210010 is a deficient number, since it is larger than the sum of its proper divisors (9780581578982).

12121011210010 is a wasteful number, since it uses less digits than its factorization.

12121011210010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207758.

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

Adding to 12121011210010 its reverse (1001211012121), we get a palindrome (13122222222131).

The spelling of 12121011210010 in words is "twelve trillion, one hundred twenty-one billion, eleven million, two hundred ten thousand, ten".