21022111012103 has 8 divisors (see below), whose sum is σ = 21318945079680. Its totient is φ = 20725297722360.

The previous prime is 21022111012039. The next prime is 21022111012117. The reversal of 21022111012103 is 30121011122012.

It is a happy number.

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 21022111012103 - 2⁶ = 21022111012039 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 (21022111012153) 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, 3151025 + ... + 7209242.

It is an arithmetic number, because the mean of its divisors is an integer number (2664868134960).

Almost surely, 2^{21022111012103} is an apocalyptic number.

21022111012103 is a deficient number, since it is larger than the sum of its proper divisors (296834067577).

21022111012103 is a wasteful number, since it uses less digits than its factorization.

21022111012103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10388917.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 21022111012103 its reverse (30121011122012), we get a palindrome (51143122134115).

The spelling of 21022111012103 in words is "twenty-one trillion, twenty-two billion, one hundred eleven million, twelve thousand, one hundred three".