62231221 has 8 divisors (see below), whose sum is σ = 67234104. Its totient is φ = 57259200.

The previous prime is 62231219. The next prime is 62231227. The reversal of 62231221 is 12213226.

It can be written as a sum of positive squares in 4 ways, for example, as 5062500 + 57168721 = 2250^2 + 7561^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 62231221 - 2¹ = 62231219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (62231227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3430 + ... + 11671.

It is an arithmetic number, because the mean of its divisors is an integer number (8404263).

Almost surely, 2^62231221 is an apocalyptic number.

It is an amenable number.

62231221 is a deficient number, since it is larger than the sum of its proper divisors (5002883).

62231221 is a wasteful number, since it uses less digits than its factorization.

62231221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15431.

The product of its digits is 288, while the sum is 19.

The square root of 62231221 is about 7888.6767584938. The cubic root of 62231221 is about 396.2805654656.

Adding to 62231221 its reverse (12213226), we get a palindrome (74444447).

The spelling of 62231221 in words is "sixty-two million, two hundred thirty-one thousand, two hundred twenty-one".