126225012 has 48 divisors (see below), whose sum is σ = 313165440. Its totient is φ = 39481728.

The previous prime is 126224981. The next prime is 126225041. The reversal of 126225012 is 210522621.

It is a happy number.

It is a super-3 number, since 3×126225012³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 126225012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10314 + ... + 18942.

It is an arithmetic number, because the mean of its divisors is an integer number (6524280).

Almost surely, 2^126225012 is an apocalyptic number.

126225012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126225012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156582720).

126225012 is an abundant number, since it is smaller than the sum of its proper divisors (186940428).

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

126225012 is a wasteful number, since it uses less digits than its factorization.

126225012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8712 (or 8710 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 126225012 is about 11234.9905206903. The cubic root of 126225012 is about 501.6280425348.

Adding to 126225012 its reverse (210522621), we get a palindrome (336747633).

The spelling of 126225012 in words is "one hundred twenty-six million, two hundred twenty-five thousand, twelve".