1012424021550 has 72 divisors (see below), whose sum is σ = 2731332661200. Its totient is φ = 268859462400.

The previous prime is 1012424021533. The next prime is 1012424021569. The reversal of 1012424021550 is 551204242101.

It is a happy number.

1012424021550 is a `hidden beast` number, since 1 + 0 + 1 + 242 + 402 + 15 + 5 + 0 = 666.

It is a super-2 number, since 2×1012424021550² (a number of 25 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 35 ways as a sum of consecutive naturals, for example, 4559250 + ... + 4776149.

It is an arithmetic number, because the mean of its divisors is an integer number (37935175850).

Almost surely, 2^{1012424021550} is an apocalyptic number.

1012424021550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1012424021550 is an abundant number, since it is smaller than the sum of its proper divisors (1718908639650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1012424021550 is a wasteful number, since it uses less digits than its factorization.

1012424021550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9335658 (or 9335650 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 1012424021550 its reverse (551204242101), we get a palindrome (1563628263651).

The spelling of 1012424021550 in words is "one trillion, twelve billion, four hundred twenty-four million, twenty-one thousand, five hundred fifty".