22235572838 has 4 divisors (see below), whose sum is σ = 33353359260. Its totient is φ = 11117786418.

The previous prime is 22235572831. The next prime is 22235572859. The reversal of 22235572838 is 83827553222.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 22235572792 and 22235572801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22235572831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5558893208 + ... + 5558893211.

It is an arithmetic number, because the mean of its divisors is an integer number (8338339815).

Almost surely, 2^22235572838 is an apocalyptic number.

22235572838 is a deficient number, since it is larger than the sum of its proper divisors (11117786422).

22235572838 is a wasteful number, since it uses less digits than its factorization.

22235572838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11117786421.

The product of its digits is 1612800, while the sum is 47.

The spelling of 22235572838 in words is "twenty-two billion, two hundred thirty-five million, five hundred seventy-two thousand, eight hundred thirty-eight".