22212342234 has 32 divisors (see below), whose sum is σ = 49466514240. Its totient is φ = 7388251056.

The previous prime is 22212342227. The next prime is 22212342283. The reversal of 22212342234 is 43224321222.

22212342234 is a `hidden beast` number, since 22 + 212 + 3 + 422 + 3 + 4 = 666.

It is a super-2 number, since 2×22212342234² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 22212342198 and 22212342207.

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, 415189 + ... + 465624.

It is an arithmetic number, because the mean of its divisors is an integer number (1545828570).

Almost surely, 2^22212342234 is an apocalyptic number.

22212342234 is an abundant number, since it is smaller than the sum of its proper divisors (27254172006).

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

22212342234 is a wasteful number, since it uses less digits than its factorization.

22212342234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881291 (or 881285 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

Adding to 22212342234 its reverse (43224321222), we get a palindrome (65436663456).

The spelling of 22212342234 in words is "twenty-two billion, two hundred twelve million, three hundred forty-two thousand, two hundred thirty-four".