212102020102 has 8 divisors (see below), whose sum is σ = 363603463056. Its totient is φ = 90900865752.

The previous prime is 212102020099. The next prime is 212102020189. The reversal of 212102020102 is 201020201212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7575072133 + ... + 7575072160.

It is an arithmetic number, because the mean of its divisors is an integer number (45450432882).

Almost surely, 2^212102020102 is an apocalyptic number.

212102020102 is a deficient number, since it is larger than the sum of its proper divisors (151501442954).

212102020102 is a wasteful number, since it uses less digits than its factorization.

212102020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15150144302.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 212102020102 its reverse (201020201212), we get a palindrome (413122221314).

The spelling of 212102020102 in words is "two hundred twelve billion, one hundred two million, twenty thousand, one hundred two".