2012210211220 has 24 divisors (see below), whose sum is σ = 4609790666208. Its totient is φ = 731712804000.

The previous prime is 2012210211169. The next prime is 2012210211227. The reversal of 2012210211220 is 221120122102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2012210211194 and 2012210211203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012210211227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4573204806 + ... + 4573205245.

It is an arithmetic number, because the mean of its divisors is an integer number (192074611092).

Almost surely, 2^{2012210211220} is an apocalyptic number.

2012210211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012210211220 is an abundant number, since it is smaller than the sum of its proper divisors (2597580454988).

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

2012210211220 is a wasteful number, since it uses less digits than its factorization.

2012210211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9146410071 (or 9146410069 counting only the distinct ones).

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

Adding to 2012210211220 its reverse (221120122102), we get a palindrome (2233330333322).

The spelling of 2012210211220 in words is "two trillion, twelve billion, two hundred ten million, two hundred eleven thousand, two hundred twenty".