20112020120 has 16 divisors (see below), whose sum is σ = 45252045360. Its totient is φ = 8044808032.

The previous prime is 20112020083. The next prime is 20112020129. The reversal of 20112020120 is 2102021102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112020129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251400212 + ... + 251400291.

It is an arithmetic number, because the mean of its divisors is an integer number (2828252835).

Almost surely, 2^20112020120 is an apocalyptic number.

20112020120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112020120 is an abundant number, since it is smaller than the sum of its proper divisors (25140025240).

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

20112020120 is a wasteful number, since it uses less digits than its factorization.

20112020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502800514 (or 502800510 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20112020120 its reverse (2102021102), we get a palindrome (22214041222).

The spelling of 20112020120 in words is "twenty billion, one hundred twelve million, twenty thousand, one hundred twenty".