21122103104 has 56 divisors (see below), whose sum is σ = 42235221600. Its totient is φ = 10480412160.

The previous prime is 21122103029. The next prime is 21122103109. The reversal of 21122103104 is 40130122112.

It is a super-2 number, since 2×21122103104² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21122103109) by changing a digit.

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, 6539762 + ... + 6542990.

Almost surely, 2^21122103104 is an apocalyptic number.

It is an amenable number.

21122103104 is a deficient number, since it is larger than the sum of its proper divisors (21113118496).

21122103104 is a wasteful number, since it uses less digits than its factorization.

21122103104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3991 (or 3981 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21122103104 its reverse (40130122112), we get a palindrome (61252225216).

The spelling of 21122103104 in words is "twenty-one billion, one hundred twenty-two million, one hundred three thousand, one hundred four".