102121200112 has 20 divisors (see below), whose sum is σ = 197923358880. Its totient is φ = 51044204288.

The previous prime is 102121200109. The next prime is 102121200119. The reversal of 102121200112 is 211002121201.

It is a junction number, because it is equal to n+sod(n) for n = 102121200092 and 102121200101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121200119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 973273 + ... + 1073080.

It is an arithmetic number, because the mean of its divisors is an integer number (9896167944).

Almost surely, 2^102121200112 is an apocalyptic number.

It is an amenable number.

102121200112 is a deficient number, since it is larger than the sum of its proper divisors (95802158768).

102121200112 is a wasteful number, since it uses less digits than its factorization.

102121200112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049480 (or 2049474 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102121200112 its reverse (211002121201), we get a palindrome (313123321313).

The spelling of 102121200112 in words is "one hundred two billion, one hundred twenty-one million, two hundred thousand, one hundred twelve".