20010112212020 has 144 divisors (see below), whose sum is σ = 50849938944000. Its totient is φ = 6587029677312.

The previous prime is 20010112212019. The next prime is 20010112212071. The reversal of 20010112212020 is 2021221101002.

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 = 20010112211986 and 20010112212004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3120461 + ... + 7053899.

It is an arithmetic number, because the mean of its divisors is an integer number (353124576000).

Almost surely, 2^{20010112212020} is an apocalyptic number.

20010112212020 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 20010112212020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25424969472000).

20010112212020 is an abundant number, since it is smaller than the sum of its proper divisors (30839826731980).

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

20010112212020 is a wasteful number, since it uses less digits than its factorization.

20010112212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3933670 (or 3933661 counting only the distinct ones).

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

Adding to 20010112212020 its reverse (2021221101002), we get a palindrome (22031333313022).

The spelling of 20010112212020 in words is "twenty trillion, ten billion, one hundred twelve million, two hundred twelve thousand, twenty".