212213202102 has 64 divisors (see below), whose sum is σ = 515479749120. Its totient is φ = 64179093600.

The previous prime is 212213202077. The next prime is 212213202109. The reversal of 212213202102 is 201202312212.

212213202102 is a `hidden beast` number, since 21 + 221 + 320 + 2 + 102 = 666.

212213202102 is digitally balanced in base 3, 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 (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212213202109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56349 + ... + 653912.

It is an arithmetic number, because the mean of its divisors is an integer number (8054371080).

Almost surely, 2^212213202102 is an apocalyptic number.

212213202102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 212213202102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257739874560).

212213202102 is an abundant number, since it is smaller than the sum of its proper divisors (303266547018).

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

212213202102 is a wasteful number, since it uses less digits than its factorization.

212213202102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710786 (or 710780 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 212213202102 its reverse (201202312212), we get a palindrome (413415514314).

The spelling of 212213202102 in words is "two hundred twelve billion, two hundred thirteen million, two hundred two thousand, one hundred two".