20022224236 has 12 divisors (see below), whose sum is σ = 40044448528. Its totient is φ = 8580953232.

The previous prime is 20022224221. The next prime is 20022224291. The reversal of 20022224236 is 63242222002.

20022224236 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 20022224236.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357539691 + ... + 357539746.

Almost surely, 2^20022224236 is an apocalyptic number.

It is an amenable number.

20022224236 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20022224236 is a wasteful number, since it uses less digits than its factorization.

20022224236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715079448 (or 715079446 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20022224236 its reverse (63242222002), we get a palindrome (83264446238).

The spelling of 20022224236 in words is "twenty billion, twenty-two million, two hundred twenty-four thousand, two hundred thirty-six".