21011121332002 has 8 divisors (see below), whose sum is σ = 33175454734800. Its totient is φ = 9952636420404.

The previous prime is 21011121331987. The next prime is 21011121332023. The reversal of 21011121332002 is 20023312111012.

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

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 276462122752 + ... + 276462122827.

It is an arithmetic number, because the mean of its divisors is an integer number (4146931841850).

Almost surely, 2^{21011121332002} is an apocalyptic number.

21011121332002 is a deficient number, since it is larger than the sum of its proper divisors (12164333402798).

21011121332002 is a wasteful number, since it uses less digits than its factorization.

21011121332002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552924245600.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 21011121332002 its reverse (20023312111012), we get a palindrome (41034433443014).

The spelling of 21011121332002 in words is "twenty-one trillion, eleven billion, one hundred twenty-one million, three hundred thirty-two thousand, two".