210022210002220 has 144 divisors (see below), whose sum is σ = 554090973649920. Its totient is φ = 65455688960640.

The previous prime is 210022210002149. The next prime is 210022210002223. The reversal of 210022210002220 is 22200012220012.

It is a super-2 number, since 2×210022210002220² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210022210002194 and 210022210002203.

It is not an unprimeable number, because it can be changed into a prime (210022210002223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 193370641 + ... + 194453719.

It is an arithmetic number, because the mean of its divisors is an integer number (3847853983680).

Almost surely, 2^{210022210002220} is an apocalyptic number.

210022210002220 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 210022210002220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277045486824960).

210022210002220 is an abundant number, since it is smaller than the sum of its proper divisors (344068763647700).

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

210022210002220 is a wasteful number, since it uses less digits than its factorization.

210022210002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094564 (or 1094551 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 210022210002220 its reverse (22200012220012), we get a palindrome (232222222222232).

The spelling of 210022210002220 in words is "two hundred ten trillion, twenty-two billion, two hundred ten million, two thousand, two hundred twenty".