2111222202220 has 24 divisors (see below), whose sum is σ = 4433621673600. Its totient is φ = 844478395392.

The previous prime is 2111222202211. The next prime is 2111222202223. The reversal of 2111222202220 is 222022221112.

It is not an unprimeable number, because it can be changed into a prime (2111222202223) 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, 1111941 + ... + 2336419.

It is an arithmetic number, because the mean of its divisors is an integer number (184734236400).

Almost surely, 2^{2111222202220} is an apocalyptic number.

2111222202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111222202220 is an abundant number, since it is smaller than the sum of its proper divisors (2322399471380).

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

2111222202220 is a wasteful number, since it uses less digits than its factorization.

2111222202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310697 (or 1310695 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2111222202220 its reverse (222022221112), we get a palindrome (2333244423332).

The spelling of 2111222202220 in words is "two trillion, one hundred eleven billion, two hundred twenty-two million, two hundred two thousand, two hundred twenty".