20012202012220 has 192 divisors, whose sum is σ = 50121682329600. Its totient is φ = 6626462515200.

The previous prime is 20012202012217. The next prime is 20012202012241. The reversal of 20012202012220 is 2221020221002.

It is a junction number, because it is equal to n+sod(n) for n = 20012202012194 and 20012202012203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 502811881 + ... + 502851679.

It is an arithmetic number, because the mean of its divisors is an integer number (261050428800).

Almost surely, 2^{20012202012220} is an apocalyptic number.

20012202012220 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 20012202012220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25060841164800).

20012202012220 is an abundant number, since it is smaller than the sum of its proper divisors (30109480317380).

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

20012202012220 is a wasteful number, since it uses less digits than its factorization.

20012202012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44204 (or 44202 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20012202012220 its reverse (2221020221002), we get a palindrome (22233222233222).

The spelling of 20012202012220 in words is "twenty trillion, twelve billion, two hundred two million, twelve thousand, two hundred twenty".