102122012112111 has 12 divisors (see below), whose sum is σ = 152972890571592. Its totient is φ = 68081341407912.

The previous prime is 102122012112103. The next prime is 102122012112149. The reversal of 102122012112111 is 111211210221201.

It is a happy number.

102122012112111 is a `hidden beast` number, since 1 + 0 + 21 + 220 + 1 + 211 + 211 + 1 = 666.

It is not a de Polignac number, because 102122012112111 - 2³ = 102122012112103 is a prime.

It is a super-2 number, since 2×102122012112111² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102122012192111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210127596696 + ... + 210127597181.

It is an arithmetic number, because the mean of its divisors is an integer number (12747740880966).

Almost surely, 2^{102122012112111} is an apocalyptic number.

102122012112111 is a deficient number, since it is larger than the sum of its proper divisors (50850878459481).

102122012112111 is an frugal number, since it uses more digits than its factorization.

102122012112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420255193892 (or 420255193880 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 102122012112111 its reverse (111211210221201), we get a palindrome (213333222333312).

The spelling of 102122012112111 in words is "one hundred two trillion, one hundred twenty-two billion, twelve million, one hundred twelve thousand, one hundred eleven".