20124212110212 has 48 divisors (see below), whose sum is σ = 55515067896960. Its totient is φ = 5551506788352.

The previous prime is 20124212110199. The next prime is 20124212110283. The reversal of 20124212110212 is 21201121242102.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 4130582973 + ... + 4130587844.

It is an arithmetic number, because the mean of its divisors is an integer number (1156563914520).

Almost surely, 2^{20124212110212} is an apocalyptic number.

It is an amenable number.

20124212110212 is an abundant number, since it is smaller than the sum of its proper divisors (35390855786748).

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

20124212110212 is a wasteful number, since it uses less digits than its factorization.

20124212110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8261170860 (or 8261170858 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 20124212110212 its reverse (21201121242102), we get a palindrome (41325333352314).

The spelling of 20124212110212 in words is "twenty trillion, one hundred twenty-four billion, two hundred twelve million, one hundred ten thousand, two hundred twelve".