210222201101220 has 864 divisors, whose sum is σ = 809829197049600. Its totient is φ = 43205880453120.

The previous prime is 210222201101161. The next prime is 210222201101303. The reversal of 210222201101220 is 22101102222012.

It is a happy number.

210222201101220 is a `hidden beast` number, since 2 + 10 + 222 + 201 + 10 + 1 + 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 = 210222201101193 and 210222201101202.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 5700613422 + ... + 5700650298.

It is an arithmetic number, because the mean of its divisors is an integer number (937302311400).

Almost surely, 2^{210222201101220} is an apocalyptic number.

210222201101220 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 210222201101220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404914598524800).

210222201101220 is an abundant number, since it is smaller than the sum of its proper divisors (599606995948380).

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

210222201101220 is a wasteful number, since it uses less digits than its factorization.

210222201101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37329 (or 37313 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 210222201101220 its reverse (22101102222012), we get a palindrome (232323303323232).

The spelling of 210222201101220 in words is "two hundred ten trillion, two hundred twenty-two billion, two hundred one million, one hundred one thousand, two hundred twenty".