20222212100220 has 288 divisors, whose sum is σ = 66176832321600. Its totient is φ = 4968922226688.

The previous prime is 20222212100161. The next prime is 20222212100221. The reversal of 20222212100220 is 2200121222202.

20222212100220 is a `hidden beast` number, since 2 + 0 + 222 + 212 + 10 + 0 + 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 = 20222212100193 and 20222212100202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222212100221) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3997272051 + ... + 3997277109.

Almost surely, 2^{20222212100220} is an apocalyptic number.

20222212100220 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 20222212100220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33088416160800).

20222212100220 is an abundant number, since it is smaller than the sum of its proper divisors (45954620221380).

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

20222212100220 is a wasteful number, since it uses less digits than its factorization.

20222212100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7789 (or 7784 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20222212100220 its reverse (2200121222202), we get a palindrome (22422333322422).

The spelling of 20222212100220 in words is "twenty trillion, two hundred twenty-two billion, two hundred twelve million, one hundred thousand, two hundred twenty".