102011202111 has 64 divisors (see below), whose sum is σ = 180705208320. Its totient is φ = 49693754880.

The previous prime is 102011202107. The next prime is 102011202119. The reversal of 102011202111 is 111202110201.

It is not a de Polignac number, because 102011202111 - 2² = 102011202107 is a prime.

It is a super-2 number, since 2×102011202111² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102011202119) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 98020 + ... + 462201.

It is an arithmetic number, because the mean of its divisors is an integer number (2823518880).

Almost surely, 2^102011202111 is an apocalyptic number.

102011202111 is a deficient number, since it is larger than the sum of its proper divisors (78694006209).

102011202111 is a wasteful number, since it uses less digits than its factorization.

102011202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560296.

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

Adding to 102011202111 its reverse (111202110201), we get a palindrome (213213312312).

The spelling of 102011202111 in words is "one hundred two billion, eleven million, two hundred two thousand, one hundred eleven".