212212102102 has 64 divisors (see below), whose sum is σ = 430512413184. Its totient is φ = 75762858240.

The previous prime is 212212102099. The next prime is 212212102121. The reversal of 212212102102 is 201201212212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112588 + ... + 661135.

It is an arithmetic number, because the mean of its divisors is an integer number (6726756456).

Almost surely, 2^212212102102 is an apocalyptic number.

212212102102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212212102102 is an abundant number, since it is smaller than the sum of its proper divisors (218300311082).

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

212212102102 is a wasteful number, since it uses less digits than its factorization.

212212102102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773893.

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

Adding to 212212102102 its reverse (201201212212), we get a palindrome (413413314314).

The spelling of 212212102102 in words is "two hundred twelve billion, two hundred twelve million, one hundred two thousand, one hundred two".