5012221578 has 64 divisors (see below), whose sum is σ = 12365160192. Its totient is φ = 1318970880.

The previous prime is 5012221519. The next prime is 5012221589. The reversal of 5012221578 is 8751222105.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 241750 + ... + 261662.

It is an arithmetic number, because the mean of its divisors is an integer number (193205628).

Almost surely, 2^5012221578 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5012221578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6182580096).

5012221578 is an abundant number, since it is smaller than the sum of its proper divisors (7352938614).

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

5012221578 is a wasteful number, since it uses less digits than its factorization.

5012221578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20399.

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 5012221578 is about 70797.0449807052. The cubic root of 5012221578 is about 1711.3680533367.

The spelling of 5012221578 in words is "five billion, twelve million, two hundred twenty-one thousand, five hundred seventy-eight".