102100012122 has 32 divisors (see below), whose sum is σ = 216831384000. Its totient is φ = 31939584768.

The previous prime is 102100012111. The next prime is 102100012123. The reversal of 102100012122 is 221210001201.

It is a junction number, because it is equal to n+sod(n) for n = 102100012098 and 102100012107.

It is not an unprimeable number, because it can be changed into a prime (102100012123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1398472 + ... + 1469667.

It is an arithmetic number, because the mean of its divisors is an integer number (6775980750).

Almost surely, 2^102100012122 is an apocalyptic number.

102100012122 is an abundant number, since it is smaller than the sum of its proper divisors (114731371878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102100012122 is a wasteful number, since it uses less digits than its factorization.

102100012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2868510.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102100012122 its reverse (221210001201), we get a palindrome (323310013323).

The spelling of 102100012122 in words is "one hundred two billion, one hundred million, twelve thousand, one hundred twenty-two".