1220554215032 has 16 divisors (see below), whose sum is σ = 2408988582600. Its totient is φ = 578157259680.

The previous prime is 1220554215017. The next prime is 1220554215059. The reversal of 1220554215032 is 2305124550221.

It is a super-2 number, since 2×1220554215032² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1220554215032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4014980819 + ... + 4014981122.

Almost surely, 2^{1220554215032} is an apocalyptic number.

It is an amenable number.

1220554215032 is a deficient number, since it is larger than the sum of its proper divisors (1188434367568).

1220554215032 is a wasteful number, since it uses less digits than its factorization.

1220554215032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8029961966 (or 8029961962 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 1220554215032 its reverse (2305124550221), we get a palindrome (3525678765253).

The spelling of 1220554215032 in words is "one trillion, two hundred twenty billion, five hundred fifty-four million, two hundred fifteen thousand, thirty-two".