1220134204405 has 8 divisors (see below), whose sum is σ = 1527820221312. Its totient is φ = 933667912848.

The previous prime is 1220134204381. The next prime is 1220134204417. The reversal of 1220134204405 is 5044024310221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220134204405 is a prime.

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, 5304931209 + ... + 5304931438.

It is an arithmetic number, because the mean of its divisors is an integer number (190977527664).

Almost surely, 2^{1220134204405} is an apocalyptic number.

It is an amenable number.

1220134204405 is a deficient number, since it is larger than the sum of its proper divisors (307686016907).

1220134204405 is a wasteful number, since it uses less digits than its factorization.

1220134204405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10609862675.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 1220134204405 its reverse (5044024310221), we get a palindrome (6264158514626).

The spelling of 1220134204405 in words is "one trillion, two hundred twenty billion, one hundred thirty-four million, two hundred four thousand, four hundred five".