2220222121100 has 36 divisors (see below), whose sum is σ = 4885739511408. Its totient is φ = 875580552000.

The previous prime is 2220222121057. The next prime is 2220222121151. The reversal of 2220222121100 is 11212220222.

It is a happy number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 156346571 + ... + 156360770.

It is an arithmetic number, because the mean of its divisors is an integer number (135714986428).

Almost surely, 2^{2220222121100} is an apocalyptic number.

2220222121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220222121100 is an abundant number, since it is smaller than the sum of its proper divisors (2665517390308).

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

2220222121100 is a wasteful number, since it uses less digits than its factorization.

2220222121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312707426 (or 312707419 counting only the distinct ones).

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

Adding to 2220222121100 its reverse (11212220222), we get a palindrome (2231434341322).

The spelling of 2220222121100 in words is "two trillion, two hundred twenty billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred".