1220243230 has 16 divisors (see below), whose sum is σ = 2250010224. Its totient is φ = 476192320.

The previous prime is 1220243209. The next prime is 1220243249. The reversal of 1220243230 is 323420221.

It is a junction number, because it is equal to n+sod(n) for n = 1220243198 and 1220243207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1487692 + ... + 1488511.

It is an arithmetic number, because the mean of its divisors is an integer number (140625639).

Almost surely, 2^1220243230 is an apocalyptic number.

1220243230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220243230 is a deficient number, since it is larger than the sum of its proper divisors (1029766994).

1220243230 is a wasteful number, since it uses less digits than its factorization.

1220243230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2976251.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1220243230 is about 34931.9800469427. The cubic root of 1220243230 is about 1068.6007359457.

Adding to 1220243230 its reverse (323420221), we get a palindrome (1543663451).

The spelling of 1220243230 in words is "one billion, two hundred twenty million, two hundred forty-three thousand, two hundred thirty".