102222111212111 has 32 divisors (see below), whose sum is σ = 115382707808256. Its totient is φ = 89778003840000.

The previous prime is 102222111212101. The next prime is 102222111212129. The reversal of 102222111212111 is 111212111222201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 102222111212111 - 2¹⁸ = 102222110949967 is a prime.

It is a super-2 number, since 2×102222111212111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102222111212101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 971546 + ... + 14331368.

It is an arithmetic number, because the mean of its divisors is an integer number (3605709619008).

Almost surely, 2^{102222111212111} is an apocalyptic number.

102222111212111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102222111212111 is a deficient number, since it is larger than the sum of its proper divisors (13160596596145).

102222111212111 is a wasteful number, since it uses less digits than its factorization.

102222111212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13360103.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 102222111212111 its reverse (111212111222201), we get a palindrome (213434222434312).

The spelling of 102222111212111 in words is "one hundred two trillion, two hundred twenty-two billion, one hundred eleven million, two hundred twelve thousand, one hundred eleven".