103214042221 has 4 divisors (see below), whose sum is σ = 103474027612. Its totient is φ = 102954056832.

The previous prime is 103214042207. The next prime is 103214042287. The reversal of 103214042221 is 122240412301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122240412301 = 7 ⋅17462916043.

It can be written as a sum of positive squares in 2 ways, for example, as 51143822500 + 52070219721 = 226150^2 + 228189^2 .

It is a cyclic number.

It is not a de Polignac number, because 103214042221 - 2¹¹ = 103214040173 is a prime.

It is a super-2 number, since 2×103214042221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103214042192 and 103214042201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103214042021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129992100 + ... + 129992893.

It is an arithmetic number, because the mean of its divisors is an integer number (25868506903).

Almost surely, 2^103214042221 is an apocalyptic number.

It is an amenable number.

103214042221 is a deficient number, since it is larger than the sum of its proper divisors (259985391).

103214042221 is an equidigital number, since it uses as much as digits as its factorization.

103214042221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259985390.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 103214042221 its reverse (122240412301), we get a palindrome (225454454522).

The spelling of 103214042221 in words is "one hundred three billion, two hundred fourteen million, forty-two thousand, two hundred twenty-one".