212011122102 has 64 divisors (see below), whose sum is σ = 483605337600. Its totient is φ = 61466575104.

The previous prime is 212011122101. The next prime is 212011122149. The reversal of 212011122102 is 201221110212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212011122101) 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 in 31 ways as a sum of consecutive naturals, for example, 761727 + ... + 1002122.

It is an arithmetic number, because the mean of its divisors is an integer number (7556333400).

Almost surely, 2^212011122102 is an apocalyptic number.

212011122102 is an abundant number, since it is smaller than the sum of its proper divisors (271594215498).

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

212011122102 is a wasteful number, since it uses less digits than its factorization.

212011122102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763957.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212011122102 its reverse (201221110212), we get a palindrome (413232232314).

The spelling of 212011122102 in words is "two hundred twelve billion, eleven million, one hundred twenty-two thousand, one hundred two".