20221012222 has 4 divisors (see below), whose sum is σ = 30331518336. Its totient is φ = 10110506110.

The previous prime is 20221012213. The next prime is 20221012277. The reversal of 20221012222 is 22221012202.

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 = 20221012196 and 20221012205.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5055253054 + ... + 5055253057.

It is an arithmetic number, because the mean of its divisors is an integer number (7582879584).

Almost surely, 2^20221012222 is an apocalyptic number.

20221012222 is a deficient number, since it is larger than the sum of its proper divisors (10110506114).

20221012222 is a wasteful number, since it uses less digits than its factorization.

20221012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10110506113.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20221012222 its reverse (22221012202), we get a palindrome (42442024424).

The spelling of 20221012222 in words is "twenty billion, two hundred twenty-one million, twelve thousand, two hundred twenty-two".