201002021101213 has 4 divisors (see below), whose sum is σ = 201002122720060. Its totient is φ = 201001919482368.

The previous prime is 201002021101201. The next prime is 201002021101229. The reversal of 201002021101213 is 312101120200102.

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 75254011458649 + 125748009642564 = 8674907^2 + 11213742^2 .

It is a cyclic number.

It is not a de Polignac number, because 201002021101213 - 2¹⁷ = 201002020970141 is a prime.

It is a super-2 number, since 2×201002021101213² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201002021101283) 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, 47782308 + ... + 51818461.

It is an arithmetic number, because the mean of its divisors is an integer number (50250530680015).

Almost surely, 2^{201002021101213} is an apocalyptic number.

It is an amenable number.

201002021101213 is a deficient number, since it is larger than the sum of its proper divisors (101618847).

201002021101213 is an equidigital number, since it uses as much as digits as its factorization.

201002021101213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101618846.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 201002021101213 its reverse (312101120200102), we get a palindrome (513103141301315).

The spelling of 201002021101213 in words is "two hundred one trillion, two billion, twenty-one million, one hundred one thousand, two hundred thirteen".