102102120020212 has 24 divisors (see below), whose sum is σ = 192423519358056. Its totient is φ = 47123983598208.

The previous prime is 102102120020161. The next prime is 102102120020267. The reversal of 102102120020212 is 212020021201201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1931727497956 + 100170392522256 = 1389866^2 + 10008516^2 .

It is a congruent number.

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, 49562238 + ... + 51581194.

It is an arithmetic number, because the mean of its divisors is an integer number (8017646639919).

Almost surely, 2^{102102120020212} is an apocalyptic number.

It is an amenable number.

102102120020212 is a deficient number, since it is larger than the sum of its proper divisors (90321399337844).

102102120020212 is a wasteful number, since it uses less digits than its factorization.

102102120020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2991507 (or 2991505 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102102120020212 its reverse (212020021201201), we get a palindrome (314122141221413).

The spelling of 102102120020212 in words is "one hundred two trillion, one hundred two billion, one hundred twenty million, twenty thousand, two hundred twelve".