2121321323002 has 48 divisors (see below), whose sum is σ = 3858357460320. Its totient is φ = 871087308000.

The previous prime is 2121321322999. The next prime is 2121321323003. The reversal of 2121321323002 is 2003231231212.

It is a super-2 number, since 2×2121321323002² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2121321323003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2476624 + ... + 3221227.

It is an arithmetic number, because the mean of its divisors is an integer number (80382447090).

Almost surely, 2^{2121321323002} is an apocalyptic number.

2121321323002 is a deficient number, since it is larger than the sum of its proper divisors (1737036137318).

2121321323002 is a wasteful number, since it uses less digits than its factorization.

2121321323002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5698027 (or 5698020 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2121321323002 its reverse (2003231231212), we get a palindrome (4124552554214).

The spelling of 2121321323002 in words is "two trillion, one hundred twenty-one billion, three hundred twenty-one million, three hundred twenty-three thousand, two".