1220104120 has 16 divisors (see below), whose sum is σ = 2745234360. Its totient is φ = 488041632.

The previous prime is 1220104111. The next prime is 1220104177. The reversal of 1220104120 is 214010221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1220104120.

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, 15251262 + ... + 15251341.

Almost surely, 2^1220104120 is an apocalyptic number.

1220104120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220104120 is an abundant number, since it is smaller than the sum of its proper divisors (1525130240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220104120 is a wasteful number, since it uses less digits than its factorization.

1220104120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30502614 (or 30502610 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1220104120 is about 34929.9888348107. The cubic root of 1220104120 is about 1068.5601269113.

Adding to 1220104120 its reverse (214010221), we get a palindrome (1434114341).

The spelling of 1220104120 in words is "one billion, two hundred twenty million, one hundred four thousand, one hundred twenty".