212111020110220 has 144 divisors (see below), whose sum is σ = 566910099479808. Its totient is φ = 66112524596160.

The previous prime is 212111020110217. The next prime is 212111020110239. The reversal of 212111020110220 is 22011020111212.

It is a junction number, because it is equal to n+sod(n) for n = 212111020110194 and 212111020110203.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24985182 + ... + 32380261.

It is an arithmetic number, because the mean of its divisors is an integer number (3936875690832).

Almost surely, 2^{212111020110220} is an apocalyptic number.

212111020110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212111020110220 is an abundant number, since it is smaller than the sum of its proper divisors (354799079369588).

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

212111020110220 is an equidigital number, since it uses as much as digits as its factorization.

212111020110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57365498 (or 57365468 counting only the distinct ones).

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

Adding to 212111020110220 its reverse (22011020111212), we get a palindrome (234122040221432).

The spelling of 212111020110220 in words is "two hundred twelve trillion, one hundred eleven billion, twenty million, one hundred ten thousand, two hundred twenty".