2120122210220 has 48 divisors (see below), whose sum is σ = 5088636211008. Its totient is φ = 726850056960.

The previous prime is 2120122210187. The next prime is 2120122210223. The reversal of 2120122210220 is 220122210212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2120122210223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1605794 + ... + 2611286.

It is an arithmetic number, because the mean of its divisors is an integer number (106013254396).

Almost surely, 2^{2120122210220} is an apocalyptic number.

2120122210220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120122210220 is an abundant number, since it is smaller than the sum of its proper divisors (2968514000788).

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

2120122210220 is a wasteful number, since it uses less digits than its factorization.

2120122210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020570 (or 1020568 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2120122210220 its reverse (220122210212), we get a palindrome (2340244420432).

The spelling of 2120122210220 in words is "two trillion, one hundred twenty billion, one hundred twenty-two million, two hundred ten thousand, two hundred twenty".