2123120202 has 32 divisors (see below), whose sum is σ = 5063841792. Its totient is φ = 580231344.

The previous prime is 2123120201. The next prime is 2123120231. The reversal of 2123120202 is 2020213212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2123120201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1097958 + ... + 1099889.

It is an arithmetic number, because the mean of its divisors is an integer number (158245056).

Almost surely, 2^2123120202 is an apocalyptic number.

2123120202 is an abundant number, since it is smaller than the sum of its proper divisors (2940721590).

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

2123120202 is a wasteful number, since it uses less digits than its factorization.

2123120202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197882.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2123120202 is about 46077.3285032889. The cubic root of 2123120202 is about 1285.2615862354.

Adding to 2123120202 its reverse (2020213212), we get a palindrome (4143333414).

The spelling of 2123120202 in words is "two billion, one hundred twenty-three million, one hundred twenty thousand, two hundred two".