2221929294 has 64 divisors (see below), whose sum is σ = 4842766656. Its totient is φ = 675569664.

The previous prime is 2221929289. The next prime is 2221929301. The reversal of 2221929294 is 4929291222.

It is a happy number.

It is a congruent 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, 3600874 + ... + 3601490.

It is an arithmetic number, because the mean of its divisors is an integer number (75668229).

Almost surely, 2^2221929294 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2221929294, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2421383328).

2221929294 is an abundant number, since it is smaller than the sum of its proper divisors (2620837362).

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

2221929294 is a wasteful number, since it uses less digits than its factorization.

2221929294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109.

The product of its digits is 93312, while the sum is 42.

The square root of 2221929294 is about 47137.3450037229. The cubic root of 2221929294 is about 1304.8985391091.

The spelling of 2221929294 in words is "two billion, two hundred twenty-one million, nine hundred twenty-nine thousand, two hundred ninety-four".