21120001020110 has 8 divisors (see below), whose sum is σ = 38016001836216. Its totient is φ = 8448000408040.

The previous prime is 21120001020089. The next prime is 21120001020127. The reversal of 21120001020110 is 1102010002112.

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

It is a junction number, because it is equal to n+sod(n) for n = 21120001020091 and 21120001020100.

It is a congruent number.

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, 1056000050996 + ... + 1056000051015.

It is an arithmetic number, because the mean of its divisors is an integer number (4752000229527).

Almost surely, 2^{21120001020110} is an apocalyptic number.

21120001020110 is a deficient number, since it is larger than the sum of its proper divisors (16896000816106).

21120001020110 is a wasteful number, since it uses less digits than its factorization.

21120001020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112000102018.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21120001020110 its reverse (1102010002112), we get a palindrome (22222011022222).

The spelling of 21120001020110 in words is "twenty-one trillion, one hundred twenty billion, one million, twenty thousand, one hundred ten".