1220231002 has 8 divisors (see below), whose sum is σ = 1839638196. Its totient is φ = 607018272.

The previous prime is 1220230961. The next prime is 1220231003. The reversal of 1220231002 is 2001320221.

It can be written as a sum of positive squares in 2 ways, for example, as 971506561 + 248724441 = 31169^2 + 15771^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1220231003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1548123 + ... + 1548910.

Almost surely, 2^1220231002 is an apocalyptic number.

1220231002 is a deficient number, since it is larger than the sum of its proper divisors (619407194).

1220231002 is a wasteful number, since it uses less digits than its factorization.

1220231002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3097232.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1220231002 is about 34931.8050206399. The cubic root of 1220231002 is about 1068.5971664679.

Adding to 1220231002 its reverse (2001320221), we get a palindrome (3221551223).

The spelling of 1220231002 in words is "one billion, two hundred twenty million, two hundred thirty-one thousand, two".