111211011020102 has 24 divisors (see below), whose sum is σ = 194287652294256. Its totient is φ = 47603949483888.

The previous prime is 111211011020047. The next prime is 111211011020117. The reversal of 111211011020102 is 201020110112111.

It is a super-2 number, since 2×111211011020102² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 689352053 + ... + 689513360.

It is an arithmetic number, because the mean of its divisors is an integer number (8095318845594).

Almost surely, 2^{111211011020102} is an apocalyptic number.

111211011020102 is a deficient number, since it is larger than the sum of its proper divisors (83076641274154).

111211011020102 is a wasteful number, since it uses less digits than its factorization.

111211011020102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378866252 (or 1378866245 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111211011020102 its reverse (201020110112111), we get a palindrome (312231121132213).

The spelling of 111211011020102 in words is "one hundred eleven trillion, two hundred eleven billion, eleven million, twenty thousand, one hundred two".