20012210120 has 32 divisors (see below), whose sum is σ = 51459969600. Its totient is φ = 6861329088.

The previous prime is 20012210117. The next prime is 20012210129. The reversal of 20012210120 is 2101221002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20012210129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35735810 + ... + 35736369.

It is an arithmetic number, because the mean of its divisors is an integer number (1608124050).

Almost surely, 2^20012210120 is an apocalyptic number.

20012210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012210120 is an abundant number, since it is smaller than the sum of its proper divisors (31447759480).

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

20012210120 is a wasteful number, since it uses less digits than its factorization.

20012210120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71472197 (or 71472193 counting only the distinct ones).

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

Adding to 20012210120 its reverse (2101221002), we get a palindrome (22113431122).

The spelling of 20012210120 in words is "twenty billion, twelve million, two hundred ten thousand, one hundred twenty".