125512222 has 16 divisors (see below), whose sum is σ = 205575552. Its totient is φ = 56997720.

The previous prime is 125512217. The next prime is 125512223. The reversal of 125512222 is 222215521.

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

It is a junction number, because it is equal to n+sod(n) for n = 125512193 and 125512202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125512223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30703 + ... + 34549.

It is an arithmetic number, because the mean of its divisors is an integer number (12848472).

Almost surely, 2^125512222 is an apocalyptic number.

125512222 is a deficient number, since it is larger than the sum of its proper divisors (80063330).

125512222 is a wasteful number, since it uses less digits than its factorization.

125512222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5343.

The product of its digits is 800, while the sum is 22.

The square root of 125512222 is about 11203.2237324799. The cubic root of 125512222 is about 500.6820319086.

Adding to 125512222 its reverse (222215521), we get a palindrome (347727743).

The spelling of 125512222 in words is "one hundred twenty-five million, five hundred twelve thousand, two hundred twenty-two".