21301121002 has 8 divisors (see below), whose sum is σ = 36516207456. Its totient is φ = 9129051852.

The previous prime is 21301120961. The next prime is 21301121021. The reversal of 21301121002 is 20012110312.

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

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, 760754308 + ... + 760754335.

It is an arithmetic number, because the mean of its divisors is an integer number (4564525932).

Almost surely, 2^21301121002 is an apocalyptic number.

21301121002 is a deficient number, since it is larger than the sum of its proper divisors (15215086454).

21301121002 is a wasteful number, since it uses less digits than its factorization.

21301121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521508652.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21301121002 its reverse (20012110312), we get a palindrome (41313231314).

The spelling of 21301121002 in words is "twenty-one billion, three hundred one million, one hundred twenty-one thousand, two".