1010323001221 has 4 divisors (see below), whose sum is σ = 1010340291744. Its totient is φ = 1010305710700.

The previous prime is 1010323001213. The next prime is 1010323001263. The reversal of 1010323001221 is 1221003230101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1010323001221 - 2³ = 1010323001213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010323001195 and 1010323001204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010323001201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8557315 + ... + 8674576.

It is an arithmetic number, because the mean of its divisors is an integer number (252585072936).

Almost surely, 2^{1010323001221} is an apocalyptic number.

It is an amenable number.

1010323001221 is a deficient number, since it is larger than the sum of its proper divisors (17290523).

1010323001221 is an equidigital number, since it uses as much as digits as its factorization.

1010323001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17290522.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1010323001221 its reverse (1221003230101), we get a palindrome (2231326231322).

The spelling of 1010323001221 in words is "one trillion, ten billion, three hundred twenty-three million, one thousand, two hundred twenty-one".