20122212234 has 32 divisors (see below), whose sum is σ = 40410624384. Its totient is φ = 6679745280.

The previous prime is 20122212233. The next prime is 20122212241. The reversal of 20122212234 is 43221222102.

It is a self number, because there is not a number n which added to its sum of digits gives 20122212234.

It is not an unprimeable number, because it can be changed into a prime (20122212233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2292414 + ... + 2301174.

It is an arithmetic number, because the mean of its divisors is an integer number (1262832012).

Almost surely, 2^20122212234 is an apocalyptic number.

20122212234 is an abundant number, since it is smaller than the sum of its proper divisors (20288412150).

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

20122212234 is a wasteful number, since it uses less digits than its factorization.

20122212234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10302.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20122212234 its reverse (43221222102), we get a palindrome (63343434336).

The spelling of 20122212234 in words is "twenty billion, one hundred twenty-two million, two hundred twelve thousand, two hundred thirty-four".