210112211021020 has 96 divisors (see below), whose sum is σ = 556739826080256. Its totient is φ = 64700489913600.

The previous prime is 210112211020981. The next prime is 210112211021143. The reversal of 210112211021020 is 20120112211012.

It is a junction number, because it is equal to n+sod(n) for n = 210112211020985 and 210112211021003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 821778811 + ... + 822034450.

It is an arithmetic number, because the mean of its divisors is an integer number (5799373188336).

Almost surely, 2^{210112211021020} is an apocalyptic number.

210112211021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210112211021020 is an abundant number, since it is smaller than the sum of its proper divisors (346627615059236).

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

210112211021020 is a wasteful number, since it uses less digits than its factorization.

210112211021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643813371 (or 1643813369 counting only the distinct ones).

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

Adding to 210112211021020 its reverse (20120112211012), we get a palindrome (230232323232032).

The spelling of 210112211021020 in words is "two hundred ten trillion, one hundred twelve billion, two hundred eleven million, twenty-one thousand, twenty".