1225534412412 has 36 divisors (see below), whose sum is σ = 3137092314720. Its totient is φ = 403340438592.

The previous prime is 1225534412411. The next prime is 1225534412461. The reversal of 1225534412412 is 2142144355221.

1225534412412 is a `hidden beast` number, since 1 + 22 + 55 + 344 + 1 + 241 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225534412411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 215456793 + ... + 215462480.

Almost surely, 2^{1225534412412} is an apocalyptic number.

1225534412412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1225534412412 is an abundant number, since it is smaller than the sum of its proper divisors (1911557902308).

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

1225534412412 is a wasteful number, since it uses less digits than its factorization.

1225534412412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430919362 (or 430919357 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

Adding to 1225534412412 its reverse (2142144355221), we get a palindrome (3367678767633).

The spelling of 1225534412412 in words is "one trillion, two hundred twenty-five billion, five hundred thirty-four million, four hundred twelve thousand, four hundred twelve".