102001111002122 has 16 divisors (see below), whose sum is σ = 162002033974152. Its totient is φ = 48000442990080.

The previous prime is 102001111002103. The next prime is 102001111002209. The reversal of 102001111002122 is 221200111100201.

It can be written as a sum of positive squares in 4 ways, for example, as 84981682539601 + 17019428462521 = 9218551^2 + 4125461^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102001111002097 and 102001111002106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21628988 + ... + 25919400.

Almost surely, 2^{102001111002122} is an apocalyptic number.

102001111002122 is a deficient number, since it is larger than the sum of its proper divisors (60000922972030).

102001111002122 is a wasteful number, since it uses less digits than its factorization.

102001111002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4989673.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102001111002122 its reverse (221200111100201), we get a palindrome (323201222102323).

The spelling of 102001111002122 in words is "one hundred two trillion, one billion, one hundred eleven million, two thousand, one hundred twenty-two".