2211230011220 has 12 divisors (see below), whose sum is σ = 4643583023604. Its totient is φ = 884492004480.

The previous prime is 2211230011169. The next prime is 2211230011261. The reversal of 2211230011220 is 221100321122.

It can be written as a sum of positive squares in 2 ways, for example, as 1130998218256 + 1080231792964 = 1063484^2 + 1039342^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55280750261 + ... + 55280750300.

It is an arithmetic number, because the mean of its divisors is an integer number (386965251967).

Almost surely, 2^{2211230011220} is an apocalyptic number.

2211230011220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211230011220 is an abundant number, since it is smaller than the sum of its proper divisors (2432353012384).

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

2211230011220 is a wasteful number, since it uses less digits than its factorization.

2211230011220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110561500570 (or 110561500568 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2211230011220 its reverse (221100321122), we get a palindrome (2432330332342).

The spelling of 2211230011220 in words is "two trillion, two hundred eleven billion, two hundred thirty million, eleven thousand, two hundred twenty".