152221201 has 4 divisors (see below), whose sum is σ = 166059504. Its totient is φ = 138382900.

The previous prime is 152221193. The next prime is 152221207. The reversal of 152221201 is 102122251.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 152221201 - 2³ = 152221193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152221207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6919135 + ... + 6919156.

It is an arithmetic number, because the mean of its divisors is an integer number (41514876).

Almost surely, 2^152221201 is an apocalyptic number.

152221201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

152221201 is a deficient number, since it is larger than the sum of its proper divisors (13838303).

152221201 is a wasteful number, since it uses less digits than its factorization.

152221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13838302.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 152221201 is about 12337.7956296901. The cubic root of 152221201 is about 533.9390872087.

Adding to 152221201 its reverse (102122251), we get a palindrome (254343452).

The spelling of 152221201 in words is "one hundred fifty-two million, two hundred twenty-one thousand, two hundred one".