102100101222 has 64 divisors (see below), whose sum is σ = 245907694080. Its totient is φ = 27607620096.

The previous prime is 102100101199. The next prime is 102100101227. The reversal of 102100101222 is 222101001201.

It is a junction number, because it is equal to n+sod(n) for n = 102100101198 and 102100101207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102100101227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 714168 + ... + 845124.

It is an arithmetic number, because the mean of its divisors is an integer number (3842307720).

Almost surely, 2^102100101222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102100101222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122953847040).

102100101222 is an abundant number, since it is smaller than the sum of its proper divisors (143807592858).

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

102100101222 is a wasteful number, since it uses less digits than its factorization.

102100101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131965.

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

Adding to 102100101222 its reverse (222101001201), we get a palindrome (324201102423).

The spelling of 102100101222 in words is "one hundred two billion, one hundred million, one hundred one thousand, two hundred twenty-two".