2030001221 has 4 divisors (see below), whose sum is σ = 2030882700. Its totient is φ = 2029119744.

The previous prime is 2030001217. The next prime is 2030001271. The reversal of 2030001221 is 1221000302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1221000302 = 2 ⋅610500151.

It can be written as a sum of positive squares in 2 ways, for example, as 1573708900 + 456292321 = 39670^2 + 21361^2 .

It is a cyclic number.

It is not a de Polignac number, because 2030001221 - 2² = 2030001217 is a prime.

It is a super-2 number, since 2×2030001221² = 8241809914522981682, which 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 (2030001271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437276 + ... + 441893.

It is an arithmetic number, because the mean of its divisors is an integer number (507720675).

Almost surely, 2^2030001221 is an apocalyptic number.

It is an amenable number.

2030001221 is a deficient number, since it is larger than the sum of its proper divisors (881479).

2030001221 is an equidigital number, since it uses as much as digits as its factorization.

2030001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881478.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2030001221 is about 45055.5348542219. The cubic root of 2030001221 is about 1266.1896708669.

Adding to 2030001221 its reverse (1221000302), we get a palindrome (3251001523).

The spelling of 2030001221 in words is "two billion, thirty million, one thousand, two hundred twenty-one".