103212002100221 has 16 divisors (see below), whose sum is σ = 118886974009344. Its totient is φ = 87769649084544.

The previous prime is 103212002100217. The next prime is 103212002100269. The reversal of 103212002100221 is 122001200212301.

It is not a de Polignac number, because 103212002100221 - 2² = 103212002100217 is a prime.

It is a super-2 number, since 2×103212002100221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103212002100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103212002100721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68393801 + ... + 69886593.

It is an arithmetic number, because the mean of its divisors is an integer number (7430435875584).

Almost surely, 2^{103212002100221} is an apocalyptic number.

It is an amenable number.

103212002100221 is a deficient number, since it is larger than the sum of its proper divisors (15674971909123).

103212002100221 is a wasteful number, since it uses less digits than its factorization.

103212002100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570700.

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

Adding to 103212002100221 its reverse (122001200212301), we get a palindrome (225213202312522).

The spelling of 103212002100221 in words is "one hundred three trillion, two hundred twelve billion, two million, one hundred thousand, two hundred twenty-one".