21121103002 has 16 divisors (see below), whose sum is σ = 32000585760. Its totient is φ = 10454382288.

The previous prime is 21121102969. The next prime is 21121103011. The reversal of 21121103002 is 20030112112.

It is a super-2 number, since 2×21121103002² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 271273 + ... + 340339.

It is an arithmetic number, because the mean of its divisors is an integer number (2000036610).

Almost surely, 2^21121103002 is an apocalyptic number.

21121103002 is a deficient number, since it is larger than the sum of its proper divisors (10879482758).

21121103002 is a wasteful number, since it uses less digits than its factorization.

21121103002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70605.

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

Adding to 21121103002 its reverse (20030112112), we get a palindrome (41151215114).

It can be divided in two parts, 2112110 and 3002, that added together give a palindrome (2115112).

The spelling of 21121103002 in words is "twenty-one billion, one hundred twenty-one million, one hundred three thousand, two".