1220135405135 has 8 divisors (see below), whose sum is σ = 1464285565440. Its totient is φ = 976026271264.

The previous prime is 1220135405123. The next prime is 1220135405191. The reversal of 1220135405135 is 5315045310221.

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

It is a cyclic number.

It is not a de Polignac number, because 1220135405135 - 2¹⁴ = 1220135388751 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, 10191140 + ... + 10310169.

It is an arithmetic number, because the mean of its divisors is an integer number (183035695680).

Almost surely, 2^{1220135405135} is an apocalyptic number.

1220135405135 is a deficient number, since it is larger than the sum of its proper divisors (244150160305).

1220135405135 is a wasteful number, since it uses less digits than its factorization.

1220135405135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20513217.

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 1220135405135 in words is "one trillion, two hundred twenty billion, one hundred thirty-five million, four hundred five thousand, one hundred thirty-five".