1220104134 has 40 divisors (see below), whose sum is σ = 2747886768. Its totient is φ = 404626320.

The previous prime is 1220104111. The next prime is 1220104177. The reversal of 1220104134 is 4314010221.

1220104134 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12799 + ... + 51029.

Almost surely, 2^1220104134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220104134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1373943384).

1220104134 is an abundant number, since it is smaller than the sum of its proper divisors (1527782634).

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

1220104134 is a wasteful number, since it uses less digits than its factorization.

1220104134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38442 (or 38433 counting only the distinct ones).

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

The square root of 1220104134 is about 34929.9890352116. The cubic root of 1220104134 is about 1068.5601309984.

Adding to 1220104134 its reverse (4314010221), we get a palindrome (5534114355).

The spelling of 1220104134 in words is "one billion, two hundred twenty million, one hundred four thousand, one hundred thirty-four".