20110212212120 has 32 divisors (see below), whose sum is σ = 45248110736400. Its totient is φ = 8044061194368.

The previous prime is 20110212212087. The next prime is 20110212212131. The reversal of 20110212212120 is 2121221201102.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 20620142 + ... + 21573378.

Almost surely, 2^{20110212212120} is an apocalyptic number.

20110212212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20110212212120 is an abundant number, since it is smaller than the sum of its proper divisors (25137898524280).

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

20110212212120 is a wasteful number, since it uses less digits than its factorization.

20110212212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480667 (or 1480663 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20110212212120 its reverse (2121221201102), we get a palindrome (22231433413222).

The spelling of 20110212212120 in words is "twenty trillion, one hundred ten billion, two hundred twelve million, two hundred twelve thousand, one hundred twenty".