1220231241 has 6 divisors (see below), whose sum is σ = 1762556250. Its totient is φ = 813487488.

The previous prime is 1220231227. The next prime is 1220231261. The reversal of 1220231241 is 1421320221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1122518016 + 97713225 = 33504^2 + 9885^2 .

It is not a de Polignac number, because 1220231241 - 2⁹ = 1220230729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220231261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67790616 + ... + 67790633.

It is an arithmetic number, because the mean of its divisors is an integer number (293759375).

Almost surely, 2^1220231241 is an apocalyptic number.

It is an amenable number.

1220231241 is a deficient number, since it is larger than the sum of its proper divisors (542325009).

1220231241 is a wasteful number, since it uses less digits than its factorization.

1220231241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135581255 (or 135581252 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1220231241 is about 34931.8084415909. The cubic root of 1220231241 is about 1068.5972362346.

Adding to 1220231241 its reverse (1421320221), we get a palindrome (2641551462).

The spelling of 1220231241 in words is "one billion, two hundred twenty million, two hundred thirty-one thousand, two hundred forty-one".