21003321012110 has 8 divisors (see below), whose sum is σ = 37805977821816. Its totient is φ = 8401328404840.

The previous prime is 21003321012077. The next prime is 21003321012187. The reversal of 21003321012110 is 1121012330012.

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

It is a super-2 number, since 2×21003321012110² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 1050166050596 + ... + 1050166050615.

It is an arithmetic number, because the mean of its divisors is an integer number (4725747227727).

Almost surely, 2^{21003321012110} is an apocalyptic number.

21003321012110 is a deficient number, since it is larger than the sum of its proper divisors (16802656809706).

21003321012110 is a wasteful number, since it uses less digits than its factorization.

21003321012110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100332101218.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 21003321012110 its reverse (1121012330012), we get a palindrome (22124333342122).

The spelling of 21003321012110 in words is "twenty-one trillion, three billion, three hundred twenty-one million, twelve thousand, one hundred ten".