220200001278 has 16 divisors (see below), whose sum is σ = 440424622080. Its totient is φ = 73395897176.

The previous prime is 220200001247. The next prime is 220200001279. The reversal of 220200001278 is 872100002022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220200001279) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 908508 + ... + 1125071.

It is an arithmetic number, because the mean of its divisors is an integer number (27526538880).

Almost surely, 2^220200001278 is an apocalyptic number.

220200001278 is an abundant number, since it is smaller than the sum of its proper divisors (220224620802).

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

220200001278 is a wasteful number, since it uses less digits than its factorization.

220200001278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051631.

The product of its (nonzero) digits is 896, while the sum is 24.

The spelling of 220200001278 in words is "two hundred twenty billion, two hundred million, one thousand, two hundred seventy-eight".