221111000102222 has 4 divisors (see below), whose sum is σ = 331666500153336. Its totient is φ = 110555500051110.

The previous prime is 221111000102191. The next prime is 221111000102231. The reversal of 221111000102222 is 222201000111122.

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 221111000102222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55277750025554 + ... + 55277750025557.

It is an arithmetic number, because the mean of its divisors is an integer number (82916625038334).

Almost surely, 2^{221111000102222} is an apocalyptic number.

221111000102222 is a deficient number, since it is larger than the sum of its proper divisors (110555500051114).

221111000102222 is a wasteful number, since it uses less digits than its factorization.

221111000102222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110555500051113.

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

Adding to 221111000102222 its reverse (222201000111122), we get a palindrome (443312000213344).

The spelling of 221111000102222 in words is "two hundred twenty-one trillion, one hundred eleven billion, one hundred two thousand, two hundred twenty-two".