2121122030 has 16 divisors (see below), whose sum is σ = 3822369264. Its totient is φ = 847482240.

The previous prime is 2121122027. The next prime is 2121122071. The reversal of 2121122030 is 302211212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2121121996 and 2121122014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111572 + ... + 129191.

It is an arithmetic number, because the mean of its divisors is an integer number (238898079).

Almost surely, 2^2121122030 is an apocalyptic number.

2121122030 is a deficient number, since it is larger than the sum of its proper divisors (1701247234).

2121122030 is a wasteful number, since it uses less digits than its factorization.

2121122030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241651.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2121122030 is about 46055.6405883145. The cubic root of 2121122030 is about 1284.8582522161.

Adding to 2121122030 its reverse (302211212), we get a palindrome (2423333242).

The spelling of 2121122030 in words is "two billion, one hundred twenty-one million, one hundred twenty-two thousand, thirty".