127221150442 has 8 divisors (see below), whose sum is σ = 190914811236. Its totient is φ = 63582880032.

The previous prime is 127221150403. The next prime is 127221150461. The reversal of 127221150442 is 244051122721.

It can be written as a sum of positive squares in 2 ways, for example, as 123003816961 + 4217333481 = 350719^2 + 64941^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×127221150442² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13841853 + ... + 13851040.

Almost surely, 2^127221150442 is an apocalyptic number.

127221150442 is a deficient number, since it is larger than the sum of its proper divisors (63693660794).

127221150442 is a wasteful number, since it uses less digits than its factorization.

127221150442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27695192.

The product of its (nonzero) digits is 8960, while the sum is 31.

The spelling of 127221150442 in words is "one hundred twenty-seven billion, two hundred twenty-one million, one hundred fifty thousand, four hundred forty-two".