2112210120020 has 288 divisors, whose sum is σ = 6065554078080. Its totient is φ = 607342095360.

The previous prime is 2112210119969. The next prime is 2112210120079. The reversal of 2112210120020 is 200210122112.

It is a super-2 number, since 2×2112210120020² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2112210119977 and 2112210120004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 305361602 + ... + 305368518.

It is an arithmetic number, because the mean of its divisors is an integer number (21060951660).

Almost surely, 2^{2112210120020} is an apocalyptic number.

2112210120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112210120020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3032777039040).

2112210120020 is an abundant number, since it is smaller than the sum of its proper divisors (3953343958060).

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

2112210120020 is a wasteful number, since it uses less digits than its factorization.

2112210120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9143 (or 9134 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2112210120020 its reverse (200210122112), we get a palindrome (2312420242132).

The spelling of 2112210120020 in words is "two trillion, one hundred twelve billion, two hundred ten million, one hundred twenty thousand, twenty".