210200220122120 has 32 divisors (see below), whose sum is σ = 472999269015000. Its totient is φ = 84071417161728.

The previous prime is 210200220122089. The next prime is 210200220122131. The reversal of 210200220122120 is 21221022002012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 182063369803396 + 28136850318724 = 13493086^2 + 5304418^2 .

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, 270572495 + ... + 271348254.

Almost surely, 2^{210200220122120} is an apocalyptic number.

210200220122120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210200220122120 is an abundant number, since it is smaller than the sum of its proper divisors (262799048892880).

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

210200220122120 is a wasteful number, since it uses less digits than its factorization.

210200220122120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541930457 (or 541930453 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 210200220122120 its reverse (21221022002012), we get a palindrome (231421242124132).

The spelling of 210200220122120 in words is "two hundred ten trillion, two hundred billion, two hundred twenty million, one hundred twenty-two thousand, one hundred twenty".