125222412 has 24 divisors (see below), whose sum is σ = 333926656. Its totient is φ = 35777808.

The previous prime is 125222401. The next prime is 125222437. The reversal of 125222412 is 214222521.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 745288 + ... + 745455.

Almost surely, 2^125222412 is an apocalyptic number.

125222412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

125222412 is an abundant number, since it is smaller than the sum of its proper divisors (208704244).

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

125222412 is a wasteful number, since it uses less digits than its factorization.

125222412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490757 (or 1490755 counting only the distinct ones).

The product of its digits is 640, while the sum is 21.

The square root of 125222412 is about 11190.2820339793. The cubic root of 125222412 is about 500.2963736240.

Adding to 125222412 its reverse (214222521), we get a palindrome (339444933).

The spelling of 125222412 in words is "one hundred twenty-five million, two hundred twenty-two thousand, four hundred twelve".