220127949912 has 144 divisors (see below), whose sum is σ = 633027282840. Its totient is φ = 63747121152.

The previous prime is 220127949901. The next prime is 220127949919. The reversal of 220127949912 is 219949721022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220127949919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1078288 + ... + 1266080.

Almost surely, 2^220127949912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220127949912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316513641420).

220127949912 is an abundant number, since it is smaller than the sum of its proper divisors (412899332928).

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

220127949912 is a wasteful number, since it uses less digits than its factorization.

220127949912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187862 (or 187828 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The spelling of 220127949912 in words is "two hundred twenty billion, one hundred twenty-seven million, nine hundred forty-nine thousand, nine hundred twelve".