20222111012220 has 288 divisors, whose sum is σ = 66993877222272. Its totient is φ = 4907687215104.

The previous prime is 20222111012209. The next prime is 20222111012281. The reversal of 20222111012220 is 2221011122202.

It is a happy number.

20222111012220 is a `hidden beast` number, since 202 + 221 + 1 + 10 + 12 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20222111012193 and 20222111012202.

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, 59526364 + ... + 59865116.

It is an arithmetic number, because the mean of its divisors is an integer number (232617629244).

Almost surely, 2^{20222111012220} is an apocalyptic number.

20222111012220 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 20222111012220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33496938611136).

20222111012220 is an abundant number, since it is smaller than the sum of its proper divisors (46771766210052).

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

20222111012220 is a wasteful number, since it uses less digits than its factorization.

20222111012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339141 (or 339136 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20222111012220 its reverse (2221011122202), we get a palindrome (22443122134422).

The spelling of 20222111012220 in words is "twenty trillion, two hundred twenty-two billion, one hundred eleven million, twelve thousand, two hundred twenty".