100203033313221 has 16 divisors (see below), whose sum is σ = 133670121372480. Its totient is φ = 66768984754560.

The previous prime is 100203033313211. The next prime is 100203033313249. The reversal of 100203033313221 is 122313330302001.

It is not a de Polignac number, because 100203033313221 - 2⁵ = 100203033313189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100203033313191 and 100203033313200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100203033313211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 731484691 + ... + 731621663.

It is an arithmetic number, because the mean of its divisors is an integer number (8354382585780).

Almost surely, 2^{100203033313221} is an apocalyptic number.

It is an amenable number.

100203033313221 is a deficient number, since it is larger than the sum of its proper divisors (33467088059259).

100203033313221 is a wasteful number, since it uses less digits than its factorization.

100203033313221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255796.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 100203033313221 its reverse (122313330302001), we get a palindrome (222516363615222).

The spelling of 100203033313221 in words is "one hundred trillion, two hundred three billion, thirty-three million, three hundred thirteen thousand, two hundred twenty-one".