2220101220100 has 36 divisors (see below), whose sum is σ = 4818309692644. Its totient is φ = 887913290880.

The previous prime is 2220101220041. The next prime is 2220101220143. The reversal of 2220101220100 is 10221010222.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 25060036 + 2220076160064 = 5006^2 + 1489992^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 886767 + ... + 2286166.

Almost surely, 2^{2220101220100} is an apocalyptic number.

2220101220100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220101220100 is an abundant number, since it is smaller than the sum of its proper divisors (2598208472544).

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

2220101220100 is a wasteful number, since it uses less digits than its factorization.

2220101220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3179944 (or 3179937 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2220101220100 its reverse (10221010222), we get a palindrome (2230322230322).

The spelling of 2220101220100 in words is "two trillion, two hundred twenty billion, one hundred one million, two hundred twenty thousand, one hundred".