2110212001220 has 24 divisors (see below), whose sum is σ = 4431880896408. Its totient is φ = 844001811200.

The previous prime is 2110212001213. The next prime is 2110212001343. The reversal of 2110212001220 is 221002120112.

It can be written as a sum of positive squares in 4 ways, for example, as 703179519364 + 1407032481856 = 838558^2 + 1186184^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2110212001195 and 2110212001204.

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, 4978121 + ... + 5385360.

It is an arithmetic number, because the mean of its divisors is an integer number (184661704017).

Almost surely, 2^{2110212001220} is an apocalyptic number.

2110212001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2110212001220 is an abundant number, since it is smaller than the sum of its proper divisors (2321668895188).

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

2110212001220 is a wasteful number, since it uses less digits than its factorization.

2110212001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10373671 (or 10373669 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2110212001220 its reverse (221002120112), we get a palindrome (2331214121332).

The spelling of 2110212001220 in words is "two trillion, one hundred ten billion, two hundred twelve million, one thousand, two hundred twenty".