102222212111 has 4 divisors (see below), whose sum is σ = 103453805112. Its totient is φ = 100990619112.

The previous prime is 102222212107. The next prime is 102222212137. The reversal of 102222212111 is 111212222201.

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

It is a cyclic number.

It is not a de Polignac number, because 102222212111 - 2² = 102222212107 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 102222212111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102222212011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 615796376 + ... + 615796541.

It is an arithmetic number, because the mean of its divisors is an integer number (25863451278).

Almost surely, 2^102222212111 is an apocalyptic number.

102222212111 is a deficient number, since it is larger than the sum of its proper divisors (1231593001).

102222212111 is an equidigital number, since it uses as much as digits as its factorization.

102222212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231593000.

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

Adding to 102222212111 its reverse (111212222201), we get a palindrome (213434434312).

The spelling of 102222212111 in words is "one hundred two billion, two hundred twenty-two million, two hundred twelve thousand, one hundred eleven".