126012222 has 36 divisors (see below), whose sum is σ = 317604456. Its totient is φ = 36003240.

The previous prime is 126012197. The next prime is 126012223. The reversal of 126012222 is 222210621.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 126012195 and 126012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126012223) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 70554 + ... + 72317.

It is an arithmetic number, because the mean of its divisors is an integer number (8822346).

Almost surely, 2^126012222 is an apocalyptic number.

126012222 is an abundant number, since it is smaller than the sum of its proper divisors (191592234).

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

126012222 is a wasteful number, since it uses less digits than its factorization.

126012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142893 (or 142883 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 126012222 is about 11225.5165582703. The cubic root of 126012222 is about 501.3460026357.

Adding to 126012222 its reverse (222210621), we get a palindrome (348222843).

The spelling of 126012222 in words is "one hundred twenty-six million, twelve thousand, two hundred twenty-two".