221211210022 has 8 divisors (see below), whose sum is σ = 361981980072. Its totient is φ = 100550550000.

The previous prime is 221211210013. The next prime is 221211210067. The reversal of 221211210022 is 220012112122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 221211209978 and 221211210005.

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 in 3 ways as a sum of consecutive naturals, for example, 5027527479 + ... + 5027527522.

It is an arithmetic number, because the mean of its divisors is an integer number (45247747509).

Almost surely, 2^221211210022 is an apocalyptic number.

221211210022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221211210022 is a deficient number, since it is larger than the sum of its proper divisors (140770770050).

221211210022 is a wasteful number, since it uses less digits than its factorization.

221211210022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10055055014.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221211210022 its reverse (220012112122), we get a palindrome (441223322144).

It can be divided in two parts, 2212112100 and 22, that added together give a palindrome (2212112122).

The spelling of 221211210022 in words is "two hundred twenty-one billion, two hundred eleven million, two hundred ten thousand, twenty-two".