102102222021111 has 24 divisors (see below), whose sum is σ = 158904972962736. Its totient is φ = 62800767469440.

The previous prime is 102102222021091. The next prime is 102102222021113. The reversal of 102102222021111 is 111120222201201.

102102222021111 is a `hidden beast` number, since 1 + 0 + 210 + 22 + 220 + 211 + 1 + 1 = 666.

It is not a de Polignac number, because 102102222021111 - 2⁴³ = 93306128998903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102222021113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217606030 + ... + 218074731.

It is an arithmetic number, because the mean of its divisors is an integer number (6621040540114).

Almost surely, 2^{102102222021111} is an apocalyptic number.

102102222021111 is a deficient number, since it is larger than the sum of its proper divisors (56802750941625).

102102222021111 is a wasteful number, since it uses less digits than its factorization.

102102222021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435682783 (or 435682780 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 102102222021111 its reverse (111120222201201), we get a palindrome (213222444222312).

The spelling of 102102222021111 in words is "one hundred two trillion, one hundred two billion, two hundred twenty-two million, twenty-one thousand, one hundred eleven".