2221223532 has 48 divisors (see below), whose sum is σ = 5836422144. Its totient is φ = 651384000.

The previous prime is 2221223527. The next prime is 2221223603. The reversal of 2221223532 is 2353221222.

It is a happy number.

It is a super-2 number, since 2×2221223532² = 9867667958221110048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267319 + ... + 275502.

It is an arithmetic number, because the mean of its divisors is an integer number (121592128).

Almost surely, 2^2221223532 is an apocalyptic number.

2221223532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2221223532 is an abundant number, since it is smaller than the sum of its proper divisors (3615198612).

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

2221223532 is a wasteful number, since it uses less digits than its factorization.

2221223532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542870 (or 542868 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 2221223532 is about 47129.8581792901. The cubic root of 2221223532 is about 1304.7603640959.

Adding to 2221223532 its reverse (2353221222), we get a palindrome (4574444754).

The spelling of 2221223532 in words is "two billion, two hundred twenty-one million, two hundred twenty-three thousand, five hundred thirty-two".