2032155221 has 2 divisors, whose sum is σ = 2032155222. Its totient is φ = 2032155220.

The previous prime is 2032155217. The next prime is 2032155233. The reversal of 2032155221 is 1225512302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1680180100 + 351975121 = 40990^2 + 18761^2 .

It is a cyclic number.

It is not a de Polignac number, because 2032155221 - 2² = 2032155217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2032155421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1016077610 + 1016077611.

It is an arithmetic number, because the mean of its divisors is an integer number (1016077611).

Almost surely, 2^2032155221 is an apocalyptic number.

It is an amenable number.

2032155221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2032155221 is an equidigital number, since it uses as much as digits as its factorization.

2032155221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2032155221 is about 45079.4323500197. The cubic root of 2032155221 is about 1266.6373567164.

Adding to 2032155221 its reverse (1225512302), we get a palindrome (3257667523).

The spelling of 2032155221 in words is "two billion, thirty-two million, one hundred fifty-five thousand, two hundred twenty-one".