20122120212 has 96 divisors (see below), whose sum is σ = 49764126720. Its totient is φ = 6318224640.

The previous prime is 20122120129. The next prime is 20122120217. The reversal of 20122120212 is 21202122102.

It is a junction number, because it is equal to n+sod(n) for n = 20122120191 and 20122120200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122120217) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 5004739 + ... + 5008757.

It is an arithmetic number, because the mean of its divisors is an integer number (518376320).

Almost surely, 2^20122120212 is an apocalyptic number.

It is an amenable number.

20122120212 is an abundant number, since it is smaller than the sum of its proper divisors (29642006508).

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

20122120212 is a wasteful number, since it uses less digits than its factorization.

20122120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4413 (or 4411 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20122120212 its reverse (21202122102), we get a palindrome (41324242314).

The spelling of 20122120212 in words is "twenty billion, one hundred twenty-two million, one hundred twenty thousand, two hundred twelve".