126221260 has 48 divisors (see below), whose sum is σ = 306180000. Its totient is φ = 43197440.

The previous prime is 126221257. The next prime is 126221279. The reversal of 126221260 is 62122621.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13135 + ... + 20614.

It is an arithmetic number, because the mean of its divisors is an integer number (6378750).

Almost surely, 2^126221260 is an apocalyptic number.

126221260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126221260 is an abundant number, since it is smaller than the sum of its proper divisors (179958740).

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

126221260 is a wasteful number, since it uses less digits than its factorization.

126221260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33786 (or 33784 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 126221260 is about 11234.8235411154. The cubic root of 126221260 is about 501.6230722387.

Adding to 126221260 its reverse (62122621), we get a palindrome (188343881).

It can be divided in two parts, 1262 and 21260, that added together give a palindrome (22522).

The spelling of 126221260 in words is "one hundred twenty-six million, two hundred twenty-one thousand, two hundred sixty".