2220123202220 has 72 divisors (see below), whose sum is σ = 5916484198800. Its totient is φ = 691986449280.

The previous prime is 2220123202183. The next prime is 2220123202237. The reversal of 2220123202220 is 222023210222.

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 = 2220123202192 and 2220123202201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102963395 + ... + 102984954.

It is an arithmetic number, because the mean of its divisors is an integer number (82173391650).

Almost surely, 2^{2220123202220} is an apocalyptic number.

2220123202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220123202220 is an abundant number, since it is smaller than the sum of its proper divisors (3696360996580).

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

2220123202220 is a wasteful number, since it uses less digits than its factorization.

2220123202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205948383 (or 205948374 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 2220123202220 its reverse (222023210222), we get a palindrome (2442146412442).

The spelling of 2220123202220 in words is "two trillion, two hundred twenty billion, one hundred twenty-three million, two hundred two thousand, two hundred twenty".