1210222220111 has 8 divisors (see below), whose sum is σ = 1233060161280.
Its totient is φ = 1187572245912.
The previous prime is 1210222220107. The next prime is 1210222220117. The reversal of 1210222220111 is 1110222220121.
Adding to 1210222220111 its reverse (1110222220121), we get a palindrome (2320444440232).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1210222220111 - 22 = 1210222220107 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 1210222220111.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1210222220117) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46978745 + ... + 47004498.
It is an arithmetic number, because the mean of its divisors is an integer number (154132520160).
Almost surely, 21210222220111 is an apocalyptic number.
1210222220111 is a deficient number, since it is larger than the sum of its proper divisors (22837941169).
1210222220111 is an equidigital number, since it uses as much as digits as its factorization.
1210222220111 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 93983485.
The product of its (nonzero) digits is 64, while the sum is 17.
The spelling of 1210222220111 in words is "one trillion, two hundred ten billion, two hundred twenty-two million, two hundred twenty thousand, one hundred eleven".