2121034120 has 32 divisors (see below), whose sum is σ = 4839549120. Its totient is φ = 836463040.

The previous prime is 2121034109. The next prime is 2121034127. The reversal of 2121034120 is 214301212.

It is a super-4 number, since 4×2121034120⁴ (a number of 38 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2121034094 and 2121034103.

It is not an unprimeable number, because it can be changed into a prime (2121034127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370582 + ... + 376261.

It is an arithmetic number, because the mean of its divisors is an integer number (151235910).

Almost surely, 2^2121034120 is an apocalyptic number.

2121034120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121034120 is an abundant number, since it is smaller than the sum of its proper divisors (2718515000).

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

2121034120 is a wasteful number, since it uses less digits than its factorization.

2121034120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746925 (or 746921 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2121034120 is about 46054.6861893554. The cubic root of 2121034120 is about 1284.8405016344.

Adding to 2121034120 its reverse (214301212), we get a palindrome (2335335332).

The spelling of 2121034120 in words is "two billion, one hundred twenty-one million, thirty-four thousand, one hundred twenty".