2221142336 has 56 divisors (see below), whose sum is σ = 5059655616. Its totient is φ = 947681280.

The previous prime is 2221142321. The next prime is 2221142383. The reversal of 2221142336 is 6332411222.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90776 + ... + 112616.

Almost surely, 2^2221142336 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 2221142336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2529827808).

2221142336 is an abundant number, since it is smaller than the sum of its proper divisors (2838513280).

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

2221142336 is a wasteful number, since it uses less digits than its factorization.

2221142336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22087 (or 22077 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 2221142336 is about 47128.9967642003. The cubic root of 2221142336 is about 1304.7444655590.

Adding to 2221142336 its reverse (6332411222), we get a palindrome (8553553558).

The spelling of 2221142336 in words is "two billion, two hundred twenty-one million, one hundred forty-two thousand, three hundred thirty-six".