225720127442 has 16 divisors (see below), whose sum is σ = 352014943392. Its totient is φ = 108463982880.

The previous prime is 225720127411. The next prime is 225720127511. The reversal of 225720127442 is 244721027522.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 225720127396 and 225720127405.

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, 20536928 + ... + 20547915.

It is an arithmetic number, because the mean of its divisors is an integer number (22000933962).

Almost surely, 2^225720127442 is an apocalyptic number.

225720127442 is a deficient number, since it is larger than the sum of its proper divisors (126294815950).

225720127442 is a wasteful number, since it uses less digits than its factorization.

225720127442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41084953.

The product of its (nonzero) digits is 125440, while the sum is 38.

The spelling of 225720127442 in words is "two hundred twenty-five billion, seven hundred twenty million, one hundred twenty-seven thousand, four hundred forty-two".