221223132222 has 32 divisors (see below), whose sum is σ = 445271523840. Its totient is φ = 73271611680.

The previous prime is 221223132211. The next prime is 221223132253. The reversal of 221223132222 is 222231322122.

It is a super-2 number, since 2×221223132222² (a number of 23 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 221223132192 and 221223132201.

It is a congruent number.

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, 433647 + ... + 794037.

It is an arithmetic number, because the mean of its divisors is an integer number (13914735120).

Almost surely, 2^221223132222 is an apocalyptic number.

221223132222 is an abundant number, since it is smaller than the sum of its proper divisors (224048391618).

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

221223132222 is a wasteful number, since it uses less digits than its factorization.

221223132222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361048.

The product of its digits is 2304, while the sum is 24.

Adding to 221223132222 its reverse (222231322122), we get a palindrome (443454454344).

The spelling of 221223132222 in words is "two hundred twenty-one billion, two hundred twenty-three million, one hundred thirty-two thousand, two hundred twenty-two".