102001122111 has 8 divisors (see below), whose sum is σ = 155430281344. Its totient is φ = 58286355480.

The previous prime is 102001122107. The next prime is 102001122137. The reversal of 102001122111 is 111221100201.

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

It is not a de Polignac number, because 102001122111 - 2² = 102001122107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102001122191) 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, 2428598125 + ... + 2428598166.

It is an arithmetic number, because the mean of its divisors is an integer number (19428785168).

Almost surely, 2^102001122111 is an apocalyptic number.

102001122111 is a deficient number, since it is larger than the sum of its proper divisors (53429159233).

102001122111 is an equidigital number, since it uses as much as digits as its factorization.

102001122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4857196301.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 102001122111 its reverse (111221100201), we get a palindrome (213222222312).

It can be divided in two parts, 10200 and 1122111, that added together give a palindrome (1132311).

The spelling of 102001122111 in words is "one hundred two billion, one million, one hundred twenty-two thousand, one hundred eleven".