12121110001210 has 32 divisors (see below), whose sum is σ = 24936681018240. Its totient is φ = 4155504783552.

The previous prime is 12121110001207. The next prime is 12121110001303. The reversal of 12121110001210 is 1210001112121.

It is a happy number.

It is a super-2 number, since 2×12121110001210² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5377164 + ... + 7290823.

It is an arithmetic number, because the mean of its divisors is an integer number (779271281820).

Almost surely, 2^{12121110001210} is an apocalyptic number.

12121110001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121110001210 is an abundant number, since it is smaller than the sum of its proper divisors (12815571017030).

12121110001210 is a wasteful number, since it uses less digits than its factorization.

12121110001210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12681670.

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

Adding to 12121110001210 its reverse (1210001112121), we get a palindrome (13331111113331).

The spelling of 12121110001210 in words is "twelve trillion, one hundred twenty-one billion, one hundred ten million, one thousand, two hundred ten".