2120221332 has 30 divisors (see below), whose sum is σ = 5542678218. Its totient is φ = 706740336.

The previous prime is 2120221321. The next prime is 2120221357. The reversal of 2120221332 is 2331220212.

It can be written as a sum of positive squares in only one way, i.e., 2120049936 + 171396 = 46044^2 + 414^2 .

It is a super-3 number, since 3×2120221332³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3271623 + ... + 3272270.

Almost surely, 2^2120221332 is an apocalyptic number.

It is an amenable number.

2120221332 is an abundant number, since it is smaller than the sum of its proper divisors (3422456886).

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

2120221332 is a wasteful number, since it uses less digits than its factorization.

2120221332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6543909 (or 6543898 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2120221332 is about 46045.8611820867. The cubic root of 2120221332 is about 1284.6763621464.

Adding to 2120221332 its reverse (2331220212), we get a palindrome (4451441544).

The spelling of 2120221332 in words is "two billion, one hundred twenty million, two hundred twenty-one thousand, three hundred thirty-two".