102120222111 has 32 divisors (see below), whose sum is σ = 145969379328. Its totient is φ = 63338837760.

The previous prime is 102120222091. The next prime is 102120222119. The reversal of 102120222111 is 111222021201.

It is not a de Polignac number, because 102120222111 - 2⁶ = 102120222047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120222119) 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, 11333370 + ... + 11342376.

It is an arithmetic number, because the mean of its divisors is an integer number (4561543104).

Almost surely, 2^102120222111 is an apocalyptic number.

102120222111 is a deficient number, since it is larger than the sum of its proper divisors (43849157217).

102120222111 is a wasteful number, since it uses less digits than its factorization.

102120222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13511.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102120222111 its reverse (111222021201), we get a palindrome (213342243312).

The spelling of 102120222111 in words is "one hundred two billion, one hundred twenty million, two hundred twenty-two thousand, one hundred eleven".