2120220112 has 20 divisors (see below), whose sum is σ = 4109485860. Its totient is φ = 1059707648.

The previous prime is 2120220101. The next prime is 2120220119. The reversal of 2120220112 is 2110220212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 887086656 + 1233133456 = 29784^2 + 35116^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2120220092 and 2120220101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120220119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20868 + ... + 68380.

It is an arithmetic number, because the mean of its divisors is an integer number (205474293).

Almost surely, 2^2120220112 is an apocalyptic number.

It is an amenable number.

2120220112 is a deficient number, since it is larger than the sum of its proper divisors (1989265748).

2120220112 is a wasteful number, since it uses less digits than its factorization.

2120220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50310 (or 50304 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2120220112 is about 46045.8479344229. The cubic root of 2120220112 is about 1284.6761157404.

Adding to 2120220112 its reverse (2110220212), we get a palindrome (4230440324).

It can be divided in two parts, 21202 and 20112, that multiplied together give a palindrome (426414624).

The spelling of 2120220112 in words is "two billion, one hundred twenty million, two hundred twenty thousand, one hundred twelve".