2030511221 has 2 divisors, whose sum is σ = 2030511222. Its totient is φ = 2030511220.

The previous prime is 2030511211. The next prime is 2030511227. The reversal of 2030511221 is 1221150302.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1093294225 + 937216996 = 33065^2 + 30614^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2030511221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2030511221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2030511227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015255610 + 1015255611.

It is an arithmetic number, because the mean of its divisors is an integer number (1015255611).

Almost surely, 2^2030511221 is an apocalyptic number.

It is an amenable number.

2030511221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2030511221 is an equidigital number, since it uses as much as digits as its factorization.

2030511221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2030511221 is about 45061.1941808026. The cubic root of 2030511221 is about 1266.2956975128.

Adding to 2030511221 its reverse (1221150302), we get a palindrome (3251661523).

The spelling of 2030511221 in words is "two billion, thirty million, five hundred eleven thousand, two hundred twenty-one".