1220551053311 has 8 divisors (see below), whose sum is σ = 1292561788464. Its totient is φ = 1148564053120.

The previous prime is 1220551053257. The next prime is 1220551053329. The reversal of 1220551053311 is 1133501550221.

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

It is not a de Polignac number, because 1220551053311 - 2¹⁸ = 1220550791167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220551053391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5827805 + ... + 6033606.

It is an arithmetic number, because the mean of its divisors is an integer number (161570223558).

Almost surely, 2^{1220551053311} is an apocalyptic number.

1220551053311 is a deficient number, since it is larger than the sum of its proper divisors (72010735153).

1220551053311 is a wasteful number, since it uses less digits than its factorization.

1220551053311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11867481.

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 1220551053311 in words is "one trillion, two hundred twenty billion, five hundred fifty-one million, fifty-three thousand, three hundred eleven".