2121020332 has 12 divisors (see below), whose sum is σ = 3718312920. Its totient is φ = 1058645216.

The previous prime is 2121020281. The next prime is 2121020339. The reversal of 2121020332 is 2330201212.

It is not an unprimeable number, because it can be changed into a prime (2121020339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463678 + ... + 468229.

It is an arithmetic number, because the mean of its divisors is an integer number (309859410).

Almost surely, 2^2121020332 is an apocalyptic number.

It is an amenable number.

2121020332 is a deficient number, since it is larger than the sum of its proper divisors (1597292588).

2121020332 is a wasteful number, since it uses less digits than its factorization.

2121020332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932480 (or 932478 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2121020332 is about 46054.5364975048. The cubic root of 2121020332 is about 1284.8377175492.

Adding to 2121020332 its reverse (2330201212), we get a palindrome (4451221544).

The spelling of 2121020332 in words is "two billion, one hundred twenty-one million, twenty thousand, three hundred thirty-two".