2121121222030 has 16 divisors (see below), whose sum is σ = 4042607505840. Its totient is φ = 798539754112.

The previous prime is 2121121221997. The next prime is 2121121222079. The reversal of 2121121222030 is 302221211212.

It is a junction number, because it is equal to n+sod(n) for n = 2121121221989 and 2121121222007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6238591660 + ... + 6238591999.

It is an arithmetic number, because the mean of its divisors is an integer number (252662969115).

Almost surely, 2^{2121121222030} is an apocalyptic number.

2121121222030 is a deficient number, since it is larger than the sum of its proper divisors (1921486283810).

2121121222030 is a wasteful number, since it uses less digits than its factorization.

2121121222030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12477183683.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2121121222030 its reverse (302221211212), we get a palindrome (2423342433242).

The spelling of 2121121222030 in words is "two trillion, one hundred twenty-one billion, one hundred twenty-one million, two hundred twenty-two thousand, thirty".