20122443234 has 12 divisors (see below), whose sum is σ = 43598627046. Its totient is φ = 6707481072.

The previous prime is 20122443169. The next prime is 20122443269. The reversal of 20122443234 is 43234422102.

20122443234 is a `hidden beast` number, since 2 + 0 + 1 + 224 + 432 + 3 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 17345680209 + 2776763025 = 131703^2 + 52695^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20122443198 and 20122443207.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 558956739 + ... + 558956774.

Almost surely, 2^20122443234 is an apocalyptic number.

20122443234 is an abundant number, since it is smaller than the sum of its proper divisors (23476183812).

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

20122443234 is a wasteful number, since it uses less digits than its factorization.

20122443234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117913521 (or 1117913518 counting only the distinct ones).

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

Adding to 20122443234 its reverse (43234422102), we get a palindrome (63356865336).

The spelling of 20122443234 in words is "twenty billion, one hundred twenty-two million, four hundred forty-three thousand, two hundred thirty-four".