2121324421002 has 8 divisors (see below), whose sum is σ = 4242648842016. Its totient is φ = 707108140332.

The previous prime is 2121324420991. The next prime is 2121324421009. The reversal of 2121324421002 is 2001244231212.

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

2121324421002 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2121324421009) 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, 176777035078 + ... + 176777035089.

It is an arithmetic number, because the mean of its divisors is an integer number (530331105252).

Almost surely, 2^{2121324421002} is an apocalyptic number.

2121324421002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2121324421002 is a wasteful number, since it uses less digits than its factorization.

2121324421002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353554070172.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 2121324421002 its reverse (2001244231212), we get a palindrome (4122568652214).

The spelling of 2121324421002 in words is "two trillion, one hundred twenty-one billion, three hundred twenty-four million, four hundred twenty-one thousand, two".