2121012020234 has 8 divisors (see below), whose sum is σ = 3186937994688. Its totient is φ = 1058699355340.

The previous prime is 2121012020221. The next prime is 2121012020279. The reversal of 2121012020234 is 4320202101212.

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

It is a super-2 number, since 2×2121012020234² (a number of 25 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 903325922 + ... + 903328269.

It is an arithmetic number, because the mean of its divisors is an integer number (398367249336).

Almost surely, 2^{2121012020234} is an apocalyptic number.

2121012020234 is a deficient number, since it is larger than the sum of its proper divisors (1065925974454).

2121012020234 is a wasteful number, since it uses less digits than its factorization.

2121012020234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806654780.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 2121012020234 its reverse (4320202101212), we get a palindrome (6441214121446).

The spelling of 2121012020234 in words is "two trillion, one hundred twenty-one billion, twelve million, twenty thousand, two hundred thirty-four".