1220054330511 has 12 divisors (see below), whose sum is σ = 1838922469488. Its totient is φ = 778005659904.

The previous prime is 1220054330501. The next prime is 1220054330527. The reversal of 1220054330511 is 1150334500221.

1220054330511 is a `hidden beast` number, since 1 + 220 + 0 + 5 + 433 + 0 + 5 + 1 + 1 = 666.

It is not a de Polignac number, because 1220054330511 - 2¹⁵ = 1220054297743 is a prime.

It is a super-2 number, since 2×1220054330511² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220054330501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2946990930 + ... + 2946991343.

It is an arithmetic number, because the mean of its divisors is an integer number (153243539124).

Almost surely, 2^{1220054330511} is an apocalyptic number.

1220054330511 is a deficient number, since it is larger than the sum of its proper divisors (618868138977).

1220054330511 is a wasteful number, since it uses less digits than its factorization.

1220054330511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5893982302 (or 5893982299 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 1220054330511 its reverse (1150334500221), we get a palindrome (2370388830732).

The spelling of 1220054330511 in words is "one trillion, two hundred twenty billion, fifty-four million, three hundred thirty thousand, five hundred eleven".