1220554533342 has 64 divisors (see below), whose sum is σ = 2527683379200. Its totient is φ = 392505834240.

The previous prime is 1220554533337. The next prime is 1220554533349. The reversal of 1220554533342 is 2433354550221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220554533342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220554533349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88702659 + ... + 88716417.

It is an arithmetic number, because the mean of its divisors is an integer number (39495052800).

Almost surely, 2^{1220554533342} is an apocalyptic number.

1220554533342 is an abundant number, since it is smaller than the sum of its proper divisors (1307128845858).

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

1220554533342 is a wasteful number, since it uses less digits than its factorization.

1220554533342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15241.

The product of its (nonzero) digits is 432000, while the sum is 39.

The spelling of 1220554533342 in words is "one trillion, two hundred twenty billion, five hundred fifty-four million, five hundred thirty-three thousand, three hundred forty-two".