2211220222220 has 24 divisors (see below), whose sum is σ = 4803685311600. Its totient is φ = 853988499392.

The previous prime is 2211220222219. The next prime is 2211220222271. The reversal of 2211220222220 is 222220221122.

2211220222220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2211220222192 and 2211220222201.

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, 1906223750 + ... + 1906224909.

It is an arithmetic number, because the mean of its divisors is an integer number (200153554650).

Almost surely, 2^{2211220222220} is an apocalyptic number.

2211220222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211220222220 is an abundant number, since it is smaller than the sum of its proper divisors (2592465089380).

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

2211220222220 is a wasteful number, since it uses less digits than its factorization.

2211220222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3812448697 (or 3812448695 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 2211220222220 its reverse (222220221122), we get a palindrome (2433440443342).

The spelling of 2211220222220 in words is "two trillion, two hundred eleven billion, two hundred twenty million, two hundred twenty-two thousand, two hundred twenty".