2101221322 has 8 divisors (see below), whose sum is σ = 3154527072. Its totient is φ = 1049712300.

The previous prime is 2101221313. The next prime is 2101221347. The reversal of 2101221322 is 2231221012.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 2101221296 and 2101221305.

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, 446254 + ... + 450937.

It is an arithmetic number, because the mean of its divisors is an integer number (394315884).

Almost surely, 2^2101221322 is an apocalyptic number.

2101221322 is a deficient number, since it is larger than the sum of its proper divisors (1053305750).

2101221322 is a wasteful number, since it uses less digits than its factorization.

2101221322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898364.

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

The square root of 2101221322 is about 45839.0807281298. The cubic root of 2101221322 is about 1280.8273707664.

Adding to 2101221322 its reverse (2231221012), we get a palindrome (4332442334).

The spelling of 2101221322 in words is "two billion, one hundred one million, two hundred twenty-one thousand, three hundred twenty-two".