1001202221213 has 2 divisors, whose sum is σ = 1001202221214. Its totient is φ = 1001202221212.

The previous prime is 1001202221209. The next prime is 1001202221249. The reversal of 1001202221213 is 3121222021001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 734179926649 + 267022294564 = 856843^2 + 516742^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001202221213 - 2² = 1001202221209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001202221191 and 1001202221200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001202221203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500601110606 + 500601110607.

It is an arithmetic number, because the mean of its divisors is an integer number (500601110607).

Almost surely, 2^{1001202221213} is an apocalyptic number.

It is an amenable number.

1001202221213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001202221213 is an equidigital number, since it uses as much as digits as its factorization.

1001202221213 is an evil number, because the sum of its binary digits is even.

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

Adding to 1001202221213 its reverse (3121222021001), we get a palindrome (4122424242214).

The spelling of 1001202221213 in words is "one trillion, one billion, two hundred two million, two hundred twenty-one thousand, two hundred thirteen".