20211202110220 has 192 divisors, whose sum is σ = 47959407562752. Its totient is φ = 7088118912000.

The previous prime is 20211202110181. The next prime is 20211202110349. The reversal of 20211202110220 is 2201120211202.

It is a happy number.

It is a super-2 number, since 2×20211202110220² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20211202110194 and 20211202110203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2668846354 + ... + 2668853926.

It is an arithmetic number, because the mean of its divisors is an integer number (249788581056).

Almost surely, 2^{20211202110220} is an apocalyptic number.

20211202110220 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 20211202110220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23979703781376).

20211202110220 is an abundant number, since it is smaller than the sum of its proper divisors (27748205452532).

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

20211202110220 is a wasteful number, since it uses less digits than its factorization.

20211202110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8912 (or 8910 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20211202110220 its reverse (2201120211202), we get a palindrome (22412322321422).

The spelling of 20211202110220 in words is "twenty trillion, two hundred eleven billion, two hundred two million, one hundred ten thousand, two hundred twenty".