20010200211220 has 96 divisors (see below), whose sum is σ = 44706022744320. Its totient is φ = 7497289451520.

The previous prime is 20010200211191. The next prime is 20010200211233. The reversal of 20010200211220 is 2211200201002.

It is a happy number.

It is a super-2 number, since 2×20010200211220² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20010200211220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86497105 + ... + 86728135.

It is an arithmetic number, because the mean of its divisors is an integer number (465687736920).

Almost surely, 2^{20010200211220} is an apocalyptic number.

20010200211220 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 20010200211220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22353011372160).

20010200211220 is an abundant number, since it is smaller than the sum of its proper divisors (24695822533100).

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

20010200211220 is a wasteful number, since it uses less digits than its factorization.

20010200211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232273 (or 232271 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20010200211220 its reverse (2211200201002), we get a palindrome (22221400412222).

The spelling of 20010200211220 in words is "twenty trillion, ten billion, two hundred million, two hundred eleven thousand, two hundred twenty".