2121012122 has 8 divisors (see below), whose sum is σ = 3235442400. Its totient is φ = 1042531324.

The previous prime is 2121012097. The next prime is 2121012139. The reversal of 2121012122 is 2212101212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2121012097 and 2121012106.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8987222 + ... + 8987457.

It is an arithmetic number, because the mean of its divisors is an integer number (404430300).

Almost surely, 2^2121012122 is an apocalyptic number.

2121012122 is a deficient number, since it is larger than the sum of its proper divisors (1114430278).

2121012122 is a wasteful number, since it uses less digits than its factorization.

2121012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17974740.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2121012122 is about 46054.4473639626. The cubic root of 2121012122 is about 1284.8360597730.

Adding to 2121012122 its reverse (2212101212), we get a palindrome (4333113334).

It can be divided in two parts, 212101212 and 2, that multiplied together give a palindrome (424202424).

The spelling of 2121012122 in words is "two billion, one hundred twenty-one million, twelve thousand, one hundred twenty-two".