212220110111020 has 96 divisors (see below), whose sum is σ = 491001036422400. Its totient is φ = 76405258272000.

The previous prime is 212220110111017. The next prime is 212220110111021. The reversal of 212220110111020 is 20111011022212.

It is a junction number, because it is equal to n+sod(n) for n = 212220110110985 and 212220110111003.

It is not an unprimeable number, because it can be changed into a prime (212220110111021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1653526011 + ... + 1653654349.

It is an arithmetic number, because the mean of its divisors is an integer number (5114594129400).

Almost surely, 2^{212220110111020} is an apocalyptic number.

212220110111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212220110111020 is an abundant number, since it is smaller than the sum of its proper divisors (278780926311380).

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

212220110111020 is a wasteful number, since it uses less digits than its factorization.

212220110111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202879 (or 202877 counting only the distinct ones).

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

Adding to 212220110111020 its reverse (20111011022212), we get a palindrome (232331121133232).

It can be divided in two parts, 2122201 and 10111020, that added together give a palindrome (12233221).

The spelling of 212220110111020 in words is "two hundred twelve trillion, two hundred twenty billion, one hundred ten million, one hundred eleven thousand, twenty".