5551221531124 has 12 divisors (see below), whose sum is σ = 9733951077984. Its totient is φ = 2770092651704.

The previous prime is 5551221531049. The next prime is 5551221531133. The reversal of 5551221531124 is 4211351221555.

It is a super-2 number, since 2×5551221531124² (a number of 26 digits) contains 22 as substring.

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, 1379526202 + ... + 1379530225.

It is an arithmetic number, because the mean of its divisors is an integer number (811162589832).

Almost surely, 2^{5551221531124} is an apocalyptic number.

It is an amenable number.

5551221531124 is a deficient number, since it is larger than the sum of its proper divisors (4182729546860).

5551221531124 is a wasteful number, since it uses less digits than its factorization.

5551221531124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759056934 (or 2759056932 counting only the distinct ones).

The product of its digits is 60000, while the sum is 37.

Adding to 5551221531124 its reverse (4211351221555), we get a palindrome (9762572752679).

The spelling of 5551221531124 in words is "five trillion, five hundred fifty-one billion, two hundred twenty-one million, five hundred thirty-one thousand, one hundred twenty-four".