212021030102 has 40 divisors (see below), whose sum is σ = 371619313800. Its totient is φ = 90718088832.

The previous prime is 212021030099. The next prime is 212021030119. The reversal of 212021030102 is 201030120212.

It is a happy number.

212021030102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2936774 + ... + 3008102.

It is an arithmetic number, because the mean of its divisors is an integer number (9290482845).

Almost surely, 2^212021030102 is an apocalyptic number.

212021030102 is a deficient number, since it is larger than the sum of its proper divisors (159598283698).

212021030102 is an frugal number, since it uses more digits than its factorization.

212021030102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71978 (or 71957 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 212021030102 its reverse (201030120212), we get a palindrome (413051150314).

The spelling of 212021030102 in words is "two hundred twelve billion, twenty-one million, thirty thousand, one hundred two".