125621122 has 32 divisors (see below), whose sum is σ = 217212480. Its totient is φ = 53887680.

The previous prime is 125621099. The next prime is 125621129. The reversal of 125621122 is 221126521.

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 = 125621093 and 125621102.

It is not an unprimeable number, because it can be changed into a prime (125621129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165568 + ... + 166324.

It is an arithmetic number, because the mean of its divisors is an integer number (6787890).

Almost surely, 2^125621122 is an apocalyptic number.

125621122 is a deficient number, since it is larger than the sum of its proper divisors (91591358).

125621122 is a wasteful number, since it uses less digits than its factorization.

125621122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186.

The product of its digits is 480, while the sum is 22.

The square root of 125621122 is about 11208.0828869169. The cubic root of 125621122 is about 500.8267947340.

Adding to 125621122 its reverse (221126521), we get a palindrome (346747643).

The spelling of 125621122 in words is "one hundred twenty-five million, six hundred twenty-one thousand, one hundred twenty-two".