2220101121220 has 48 divisors (see below), whose sum is σ = 4720234459248. Its totient is φ = 877032921600.

The previous prime is 2220101121211. The next prime is 2220101121241. The reversal of 2220101121220 is 221211010222.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 66902926336 + 2153198194884 = 258656^2 + 1467378^2 .

It is a super-2 number, since 2×2220101121220² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2220101121194 and 2220101121203.

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 15 ways as a sum of consecutive naturals, for example, 582267 + ... + 2186146.

It is an arithmetic number, because the mean of its divisors is an integer number (98338217901).

Almost surely, 2^{2220101121220} is an apocalyptic number.

2220101121220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220101121220 is an abundant number, since it is smaller than the sum of its proper divisors (2500133338028).

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

2220101121220 is a wasteful number, since it uses less digits than its factorization.

2220101121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2768920 (or 2768918 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2220101121220 its reverse (221211010222), we get a palindrome (2441312131442).

The spelling of 2220101121220 in words is "two trillion, two hundred twenty billion, one hundred one million, one hundred twenty-one thousand, two hundred twenty".