2121002001322 has 8 divisors (see below), whose sum is σ = 3181511419236. Its totient is φ = 1060498194912.

The previous prime is 2121002001227. The next prime is 2121002001343. The reversal of 2121002001322 is 2231002001212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1976045906961 + 144956094361 = 1405719^2 + 380731^2 .

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

It is a super-2 number, since 2×2121002001322² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2121002001296 and 2121002001305.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277333 + ... + 2078200.

Almost surely, 2^{2121002001322} is an apocalyptic number.

2121002001322 is a deficient number, since it is larger than the sum of its proper divisors (1060509417914).

2121002001322 is a wasteful number, since it uses less digits than its factorization.

2121002001322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805752.

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

Adding to 2121002001322 its reverse (2231002001212), we get a palindrome (4352004002534).

The spelling of 2121002001322 in words is "two trillion, one hundred twenty-one billion, two million, one thousand, three hundred twenty-two".