2210012121220 has 12 divisors (see below), whose sum is σ = 4641025454604. Its totient is φ = 884004848480.

The previous prime is 2210012121211. The next prime is 2210012121241. The reversal of 2210012121220 is 221212100122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 293443223616 + 1916568897604 = 541704^2 + 1384402^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2210012121194 and 2210012121203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55250303011 + ... + 55250303050.

It is an arithmetic number, because the mean of its divisors is an integer number (386752121217).

Almost surely, 2^{2210012121220} is an apocalyptic number.

2210012121220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2210012121220 is an abundant number, since it is smaller than the sum of its proper divisors (2431013333384).

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

2210012121220 is a wasteful number, since it uses less digits than its factorization.

2210012121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110500606070 (or 110500606068 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2210012121220 its reverse (221212100122), we get a palindrome (2431224221342).

The spelling of 2210012121220 in words is "two trillion, two hundred ten billion, twelve million, one hundred twenty-one thousand, two hundred twenty".