1220554325044 has 24 divisors (see below), whose sum is σ = 2220724634688. Its totient is φ = 586505895360.

The previous prime is 1220554325033. The next prime is 1220554325059. The reversal of 1220554325044 is 4405234550221.

It is a super-2 number, since 2×1220554325044² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1220554324994 and 1220554325012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55529344 + ... + 55551319.

It is an arithmetic number, because the mean of its divisors is an integer number (92530193112).

Almost surely, 2^{1220554325044} is an apocalyptic number.

It is an amenable number.

1220554325044 is a deficient number, since it is larger than the sum of its proper divisors (1000170309644).

1220554325044 is a wasteful number, since it uses less digits than its factorization.

1220554325044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111080775 (or 111080773 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 1220554325044 its reverse (4405234550221), we get a palindrome (5625788875265).

The spelling of 1220554325044 in words is "one trillion, two hundred twenty billion, five hundred fifty-four million, three hundred twenty-five thousand, forty-four".