210102102111220 has 48 divisors (see below), whose sum is σ = 481346104934016. Its totient is φ = 76397385168000.

The previous prime is 210102102111217. The next prime is 210102102111241. The reversal of 210102102111220 is 22111201201012.

It is a junction number, because it is equal to n+sod(n) for n = 210102102111194 and 210102102111203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16132296 + ... + 26085535.

It is an arithmetic number, because the mean of its divisors is an integer number (10028043852792).

Almost surely, 2^{210102102111220} is an apocalyptic number.

210102102111220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210102102111220 is an abundant number, since it is smaller than the sum of its proper divisors (271244002822796).

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

210102102111220 is a wasteful number, since it uses less digits than its factorization.

210102102111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42240472 (or 42240470 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210102102111220 its reverse (22111201201012), we get a palindrome (232213303312232).

The spelling of 210102102111220 in words is "two hundred ten trillion, one hundred two billion, one hundred two million, one hundred eleven thousand, two hundred twenty".