21122002110 has 32 divisors (see below), whose sum is σ = 55301242752. Its totient is φ = 5120485280.

The previous prime is 21122002063. The next prime is 21122002141. The reversal of 21122002110 is 1120022112.

It is a super-3 number, since 3×21122002110³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32002704 + ... + 32003363.

It is an arithmetic number, because the mean of its divisors is an integer number (1728163836).

Almost surely, 2^21122002110 is an apocalyptic number.

21122002110 is an abundant number, since it is smaller than the sum of its proper divisors (34179240642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21122002110 is a wasteful number, since it uses less digits than its factorization.

21122002110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64006088.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21122002110 its reverse (1120022112), we get a palindrome (22242024222).

It can be divided in two parts, 21122002 and 110, that added together give a palindrome (21122112).

The spelling of 21122002110 in words is "twenty-one billion, one hundred twenty-two million, two thousand, one hundred ten".