2202120211220 has 24 divisors (see below), whose sum is σ = 4624482546600. Its totient is φ = 880842350592.

The previous prime is 2202120211211. The next prime is 2202120211223. The reversal of 2202120211220 is 221120212022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1178813975824 + 1023306235396 = 1085732^2 + 1011586^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202120211223) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4213316 + ... + 4707044.

It is an arithmetic number, because the mean of its divisors is an integer number (192686772775).

Almost surely, 2^{2202120211220} is an apocalyptic number.

2202120211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2202120211220 is an abundant number, since it is smaller than the sum of its proper divisors (2422362335380).

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

2202120211220 is a wasteful number, since it uses less digits than its factorization.

2202120211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716747 (or 716745 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2202120211220 its reverse (221120212022), we get a palindrome (2423240423242).

The spelling of 2202120211220 in words is "two trillion, two hundred two billion, one hundred twenty million, two hundred eleven thousand, two hundred twenty".