1220550222254 has 32 divisors (see below), whose sum is σ = 2022648842592. Its totient is φ = 547771392000.

The previous prime is 1220550222247. The next prime is 1220550222259. The reversal of 1220550222254 is 4522220550221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220550222254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220550222259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219134 + ... + 1577694.

It is an arithmetic number, because the mean of its divisors is an integer number (63207776331).

Almost surely, 2^{1220550222254} is an apocalyptic number.

1220550222254 is a deficient number, since it is larger than the sum of its proper divisors (802098620338).

1220550222254 is a wasteful number, since it uses less digits than its factorization.

1220550222254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359092.

The product of its (nonzero) digits is 32000, while the sum is 32.

Adding to 1220550222254 its reverse (4522220550221), we get a palindrome (5742770772475).

The spelling of 1220550222254 in words is "one trillion, two hundred twenty billion, five hundred fifty million, two hundred twenty-two thousand, two hundred fifty-four".