125151222 has 32 divisors (see below), whose sum is σ = 287576064. Its totient is φ = 35568000.

The previous prime is 125151197. The next prime is 125151223. The reversal of 125151222 is 222151521.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125151223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222 + ... + 15822.

It is an arithmetic number, because the mean of its divisors is an integer number (8986752).

Almost surely, 2^125151222 is an apocalyptic number.

125151222 is an abundant number, since it is smaller than the sum of its proper divisors (162424842).

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

125151222 is a wasteful number, since it uses less digits than its factorization.

125151222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15804.

The product of its digits is 400, while the sum is 21.

The square root of 125151222 is about 11187.1006967847. The cubic root of 125151222 is about 500.2015480792.

The spelling of 125151222 in words is "one hundred twenty-five million, one hundred fifty-one thousand, two hundred twenty-two".