210220102210120 has 32 divisors (see below), whose sum is σ = 473069589172920. Its totient is φ = 84074821470720.

The previous prime is 210220102210103. The next prime is 210220102210163. The reversal of 210220102210120 is 21012201022012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 190524631000356 + 19695471209764 = 13803066^2 + 4437958^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210220102210094 and 210220102210103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412849047 + ... + 413357926.

Almost surely, 2^{210220102210120} is an apocalyptic number.

210220102210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210220102210120 is an abundant number, since it is smaller than the sum of its proper divisors (262849486962800).

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

210220102210120 is a wasteful number, since it uses less digits than its factorization.

210220102210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826213345 (or 826213341 counting only the distinct ones).

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

Adding to 210220102210120 its reverse (21012201022012), we get a palindrome (231232303232132).

The spelling of 210220102210120 in words is "two hundred ten trillion, two hundred twenty billion, one hundred two million, two hundred ten thousand, one hundred twenty".