102211222120111 has 16 divisors (see below), whose sum is σ = 110180515273920. Its totient is φ = 94257239086080.

The previous prime is 102211222120087. The next prime is 102211222120193. The reversal of 102211222120111 is 111021222112201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 102211222120111 - 2²³ = 102211213731503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102211222120411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60802741 + ... + 62461153.

It is an arithmetic number, because the mean of its divisors is an integer number (6886282204620).

Almost surely, 2^{102211222120111} is an apocalyptic number.

102211222120111 is a deficient number, since it is larger than the sum of its proper divisors (7969293153809).

102211222120111 is a wasteful number, since it uses less digits than its factorization.

102211222120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663026.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 102211222120111 its reverse (111021222112201), we get a palindrome (213232444232312).

The spelling of 102211222120111 in words is "one hundred two trillion, two hundred eleven billion, two hundred twenty-two million, one hundred twenty thousand, one hundred eleven".