126212035312044 has 384 divisors, whose sum is σ = 375598055669760. Its totient is φ = 36306756057600.

The previous prime is 126212035312031. The next prime is 126212035312067. The reversal of 126212035312044 is 440213530212621.

It is a happy number.

126212035312044 is a `hidden beast` number, since 1 + 2 + 62 + 1 + 2 + 0 + 3 + 531 + 20 + 44 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 550724209 + ... + 550953335.

It is an arithmetic number, because the mean of its divisors is an integer number (978119936640).

Almost surely, 2^{126212035312044} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126212035312044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187799027834880).

126212035312044 is an abundant number, since it is smaller than the sum of its proper divisors (249386020357716).

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

126212035312044 is a wasteful number, since it uses less digits than its factorization.

126212035312044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229498 (or 229490 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 126212035312044 its reverse (440213530212621), we get a palindrome (566425565524665).

The spelling of 126212035312044 in words is "one hundred twenty-six trillion, two hundred twelve billion, thirty-five million, three hundred twelve thousand, forty-four".