102101220212 has 6 divisors (see below), whose sum is σ = 178677135378. Its totient is φ = 51050610104.

The previous prime is 102101220209. The next prime is 102101220217. The reversal of 102101220212 is 212022101201.

It can be written as a sum of positive squares in only one way, i.e., 98311094116 + 3790126096 = 313546^2 + 61564^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102101220217) 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 as a sum of consecutive naturals, namely, 12762652523 + ... + 12762652530.

It is an arithmetic number, because the mean of its divisors is an integer number (29779522563).

Almost surely, 2^102101220212 is an apocalyptic number.

It is an amenable number.

102101220212 is a deficient number, since it is larger than the sum of its proper divisors (76575915166).

102101220212 is a wasteful number, since it uses less digits than its factorization.

102101220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25525305057 (or 25525305055 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102101220212 its reverse (212022101201), we get a palindrome (314123321413).

The spelling of 102101220212 in words is "one hundred two billion, one hundred one million, two hundred twenty thousand, two hundred twelve".