22100103555421 has 8 divisors (see below), whose sum is σ = 23061378588480. Its totient is φ = 21138861936192.

The previous prime is 22100103555419. The next prime is 22100103555427. The reversal of 22100103555421 is 12455530100122.

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

It is a cyclic number.

It is not a de Polignac number, because 22100103555421 - 2¹ = 22100103555419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100103555427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6997191 + ... + 9651988.

It is an arithmetic number, because the mean of its divisors is an integer number (2882672323560).

Almost surely, 2^{22100103555421} is an apocalyptic number.

It is an amenable number.

22100103555421 is a deficient number, since it is larger than the sum of its proper divisors (961275033059).

22100103555421 is a wasteful number, since it uses less digits than its factorization.

22100103555421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16706915.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 22100103555421 its reverse (12455530100122), we get a palindrome (34555633655543).

The spelling of 22100103555421 in words is "twenty-two trillion, one hundred billion, one hundred three million, five hundred fifty-five thousand, four hundred twenty-one".