220100220120 has 64 divisors (see below), whose sum is σ = 720327997440. Its totient is φ = 53357628800.

The previous prime is 220100220113. The next prime is 220100220161. The reversal of 220100220120 is 21022001022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 220100220096 and 220100220105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83369976 + ... + 83372615.

It is an arithmetic number, because the mean of its divisors is an integer number (11255124960).

Almost surely, 2^220100220120 is an apocalyptic number.

220100220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220100220120 is an abundant number, since it is smaller than the sum of its proper divisors (500227777320).

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

220100220120 is a wasteful number, since it uses less digits than its factorization.

220100220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166742616 (or 166742612 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 220100220120 its reverse (21022001022), we get a palindrome (241122221142).

The spelling of 220100220120 in words is "two hundred twenty billion, one hundred million, two hundred twenty thousand, one hundred twenty".