1230100110221 has 4 divisors (see below), whose sum is σ = 1302458940252. Its totient is φ = 1157741280192.

The previous prime is 1230100110167. The next prime is 1230100110269. The reversal of 1230100110221 is 1220110010321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 669024207721 + 561075902500 = 817939^2 + 749050^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230100110221 - 2⁶ = 1230100110157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230100110196 and 1230100110205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230100119221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36179414990 + ... + 36179415023.

It is an arithmetic number, because the mean of its divisors is an integer number (325614735063).

Almost surely, 2^{1230100110221} is an apocalyptic number.

It is an amenable number.

1230100110221 is a deficient number, since it is larger than the sum of its proper divisors (72358830031).

1230100110221 is an equidigital number, since it uses as much as digits as its factorization.

1230100110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72358830030.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1230100110221 its reverse (1220110010321), we get a palindrome (2450210120542).

The spelling of 1230100110221 in words is "one trillion, two hundred thirty billion, one hundred million, one hundred ten thousand, two hundred twenty-one".