210111020112220 has 24 divisors (see below), whose sum is σ = 442311951891600. Its totient is φ = 83838920491392.

The previous prime is 210111020112211. The next prime is 210111020112239. The reversal of 210111020112220 is 22211020111012.

It is a junction number, because it is equal to n+sod(n) for n = 210111020112194 and 210111020112203.

It is a congruent number.

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, 12842963710 + ... + 12842980069.

It is an arithmetic number, because the mean of its divisors is an integer number (18429664662150).

Almost surely, 2^{210111020112220} is an apocalyptic number.

210111020112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210111020112220 is an abundant number, since it is smaller than the sum of its proper divisors (232200931779380).

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

210111020112220 is a wasteful number, since it uses less digits than its factorization.

210111020112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25685944197 (or 25685944195 counting only the distinct ones).

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

Adding to 210111020112220 its reverse (22211020111012), we get a palindrome (232322040223232).

The spelling of 210111020112220 in words is "two hundred ten trillion, one hundred eleven billion, twenty million, one hundred twelve thousand, two hundred twenty".