20121212143110 has 128 divisors (see below), whose sum is σ = 54269401890816. Its totient is φ = 4737334440960.

The previous prime is 20121212143093. The next prime is 20121212143171. The reversal of 20121212143110 is 1134121212102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 236702715 + ... + 236787705.

It is an arithmetic number, because the mean of its divisors is an integer number (423979702272).

Almost surely, 2^{20121212143110} is an apocalyptic number.

20121212143110 is an abundant number, since it is smaller than the sum of its proper divisors (34148189747706).

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

20121212143110 is a wasteful number, since it uses less digits than its factorization.

20121212143110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111430.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 20121212143110 its reverse (1134121212102), we get a palindrome (21255333355212).

The spelling of 20121212143110 in words is "twenty trillion, one hundred twenty-one billion, two hundred twelve million, one hundred forty-three thousand, one hundred ten".