221000211011222 has 4 divisors (see below), whose sum is σ = 331500316516836. Its totient is φ = 110500105505610.

The previous prime is 221000211011221. The next prime is 221000211011263. The reversal of 221000211011222 is 222110112000122.

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

It is a self number, because there is not a number n which added to its sum of digits gives 221000211011222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221000211011221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55250052752804 + ... + 55250052752807.

It is an arithmetic number, because the mean of its divisors is an integer number (82875079129209).

Almost surely, 2^{221000211011222} is an apocalyptic number.

221000211011222 is a deficient number, since it is larger than the sum of its proper divisors (110500105505614).

221000211011222 is a wasteful number, since it uses less digits than its factorization.

221000211011222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110500105505613.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221000211011222 its reverse (222110112000122), we get a palindrome (443110323011344).

The spelling of 221000211011222 in words is "two hundred twenty-one trillion, two hundred eleven million, eleven thousand, two hundred twenty-two".