20012212121110 has 64 divisors (see below), whose sum is σ = 40125787262784. Its totient is φ = 7125090048000.

The previous prime is 20012212121087. The next prime is 20012212121159. The reversal of 20012212121110 is 1112121221002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7995441 + ... + 10195660.

It is an arithmetic number, because the mean of its divisors is an integer number (626965425981).

Almost surely, 2^{20012212121110} is an apocalyptic number.

20012212121110 is an abundant number, since it is smaller than the sum of its proper divisors (20113575141674).

20012212121110 is a wasteful number, since it uses less digits than its factorization.

20012212121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18191329.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20012212121110 its reverse (1112121221002), we get a palindrome (21124333342112).

The spelling of 20012212121110 in words is "twenty trillion, twelve billion, two hundred twelve million, one hundred twenty-one thousand, one hundred ten".