102011121211111 has 8 divisors (see below), whose sum is σ = 116587610938400. Its totient is φ = 87435499586688.

The previous prime is 102011121211093. The next prime is 102011121211117. The reversal of 102011121211111 is 111112121110201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102011121211111 - 2⁷ = 102011121210983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102011121211117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216773886 + ... + 217243963.

It is an arithmetic number, because the mean of its divisors is an integer number (14573451367300).

Almost surely, 2^{102011121211111} is an apocalyptic number.

102011121211111 is a deficient number, since it is larger than the sum of its proper divisors (14576489727289).

102011121211111 is an equidigital number, since it uses as much as digits as its factorization.

102011121211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434051433.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 102011121211111 its reverse (111112121110201), we get a palindrome (213123242321312).

The spelling of 102011121211111 in words is "one hundred two trillion, eleven billion, one hundred twenty-one million, two hundred eleven thousand, one hundred eleven".