1013221213201 has 8 divisors (see below), whose sum is σ = 1017224481384. Its totient is φ = 1009218416640.

The previous prime is 1013221213177. The next prime is 1013221213237. The reversal of 1013221213201 is 1023121223101.

It can be written as a sum of positive squares in 4 ways, for example, as 641945476225 + 371275736976 = 801215^2 + 609324^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1013221213201 - 2²⁹ = 1012684342289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1013221213271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4551471 + ... + 4768891.

It is an arithmetic number, because the mean of its divisors is an integer number (127153060173).

Almost surely, 2^{1013221213201} is an apocalyptic number.

It is an amenable number.

1013221213201 is a deficient number, since it is larger than the sum of its proper divisors (4003268183).

1013221213201 is a wasteful number, since it uses less digits than its factorization.

1013221213201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235811.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1013221213201 its reverse (1023121223101), we get a palindrome (2036342436302).

The spelling of 1013221213201 in words is "one trillion, thirteen billion, two hundred twenty-one million, two hundred thirteen thousand, two hundred one".