2120103302220 has 72 divisors (see below), whose sum is σ = 6473569371360. Its totient is φ = 561616761600.

The previous prime is 2120103302153. The next prime is 2120103302221. The reversal of 2120103302220 is 222033010212.

2120103302220 is a `hidden beast` number, since 21 + 20 + 103 + 302 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2120103302193 and 2120103302202.

It is not an unprimeable number, because it can be changed into a prime (2120103302221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38973985 + ... + 39028344.

Almost surely, 2^{2120103302220} is an apocalyptic number.

2120103302220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120103302220 is an abundant number, since it is smaller than the sum of its proper divisors (4353466069140).

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

2120103302220 is a wasteful number, since it uses less digits than its factorization.

2120103302220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78002495 (or 78002490 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 2120103302220 its reverse (222033010212), we get a palindrome (2342136312432).

The spelling of 2120103302220 in words is "two trillion, one hundred twenty billion, one hundred three million, three hundred two thousand, two hundred twenty".