102211011211111 has 32 divisors (see below), whose sum is σ = 120460032705600. Its totient is φ = 85694742528000.

The previous prime is 102211011211109. The next prime is 102211011211201. The reversal of 102211011211111 is 111112110112201.

It is a cyclic number.

It is not a de Polignac number, because 102211011211111 - 2¹ = 102211011211109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102211011211411) 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, 26063386 + ... + 29727463.

It is an arithmetic number, because the mean of its divisors is an integer number (3764376022050).

Almost surely, 2^{102211011211111} is an apocalyptic number.

102211011211111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102211011211111 is a deficient number, since it is larger than the sum of its proper divisors (18249021494489).

102211011211111 is a wasteful number, since it uses less digits than its factorization.

102211011211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55791075.

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

Adding to 102211011211111 its reverse (111112110112201), we get a palindrome (213323121323312).

It can be divided in two parts, 1022110 and 11211111, that added together give a palindrome (12233221).

The spelling of 102211011211111 in words is "one hundred two trillion, two hundred eleven billion, eleven million, two hundred eleven thousand, one hundred eleven".