1220018104 has 16 divisors (see below), whose sum is σ = 2336205600. Its totient is φ = 597029952.

The previous prime is 1220018089. The next prime is 1220018147. The reversal of 1220018104 is 4018100221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1621989 + ... + 1622740.

It is an arithmetic number, because the mean of its divisors is an integer number (146012850).

Almost surely, 2^1220018104 is an apocalyptic number.

It is an amenable number.

1220018104 is a deficient number, since it is larger than the sum of its proper divisors (1116187496).

1220018104 is a wasteful number, since it uses less digits than its factorization.

1220018104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3244782 (or 3244778 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 1220018104 is about 34928.7575501906. The cubic root of 1220018104 is about 1068.5350155496.

Adding to 1220018104 its reverse (4018100221), we get a palindrome (5238118325).

The spelling of 1220018104 in words is "one billion, two hundred twenty million, eighteen thousand, one hundred four".