210022122221220 has 192 divisors, whose sum is σ = 621287469250560. Its totient is φ = 52863272985600.

The previous prime is 210022122221123. The next prime is 210022122221221. The reversal of 210022122221220 is 22122221220012.

It is not an unprimeable number, because it can be changed into a prime (210022122221221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3178700785 + ... + 3178766855.

It is an arithmetic number, because the mean of its divisors is an integer number (3235872235680).

Almost surely, 2^{210022122221220} is an apocalyptic number.

210022122221220 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 210022122221220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310643734625280).

210022122221220 is an abundant number, since it is smaller than the sum of its proper divisors (411265347029340).

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

210022122221220 is a wasteful number, since it uses less digits than its factorization.

210022122221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76306 (or 76304 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 210022122221220 its reverse (22122221220012), we get a palindrome (232144343441232).

The spelling of 210022122221220 in words is "two hundred ten trillion, twenty-two billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred twenty".