210111210010220 has 48 divisors (see below), whose sum is σ = 475257669680640. Its totient is φ = 77769436844736.

The previous prime is 210111210010193. The next prime is 210111210010271. The reversal of 210111210010220 is 22010012111012.

It is a junction number, because it is equal to n+sod(n) for n = 210111210010195 and 210111210010204.

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, 6429335252 + ... + 6429367931.

It is an arithmetic number, because the mean of its divisors is an integer number (9901201451680).

Almost surely, 2^{210111210010220} is an apocalyptic number.

210111210010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210111210010220 is an abundant number, since it is smaller than the sum of its proper divisors (265146459670420).

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

210111210010220 is a wasteful number, since it uses less digits than its factorization.

210111210010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12858703254 (or 12858703252 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 210111210010220 its reverse (22010012111012), we get a palindrome (232121222121232).

The spelling of 210111210010220 in words is "two hundred ten trillion, one hundred eleven billion, two hundred ten million, ten thousand, two hundred twenty".