201002301221 has 4 divisors (see below), whose sum is σ = 201289038444. Its totient is φ = 200715564000.

The previous prime is 201002301211. The next prime is 201002301223. The reversal of 201002301221 is 122103200102.

It is a happy number.

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 134314920100 + 66687381121 = 366490^2 + 258239^2 .

It is a cyclic number.

It is not a de Polignac number, because 201002301221 - 2¹⁰ = 201002300197 is a prime.

It is a super-2 number, since 2×201002301221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201002301196 and 201002301205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201002301223) 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, 143367560 + ... + 143368961.

It is an arithmetic number, because the mean of its divisors is an integer number (50322259611).

Almost surely, 2^201002301221 is an apocalyptic number.

It is an amenable number.

201002301221 is a deficient number, since it is larger than the sum of its proper divisors (286737223).

201002301221 is an equidigital number, since it uses as much as digits as its factorization.

201002301221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286737222.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 201002301221 its reverse (122103200102), we get a palindrome (323105501323).

The spelling of 201002301221 in words is "two hundred one billion, two million, three hundred one thousand, two hundred twenty-one".