212002112220102 has 32 divisors (see below), whose sum is σ = 471192772798560. Its totient is φ = 70655825560320.

The previous prime is 212002112220053. The next prime is 212002112220103. The reversal of 212002112220102 is 201022211200212.

It is a happy number.

212002112220102 is a `hidden beast` number, since 21 + 200 + 211 + 2 + 220 + 10 + 2 = 666.

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 (212002112220103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320365843 + ... + 321026910.

It is an arithmetic number, because the mean of its divisors is an integer number (14724774149955).

Almost surely, 2^{212002112220102} is an apocalyptic number.

212002112220102 is an abundant number, since it is smaller than the sum of its proper divisors (259190660578458).

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

212002112220102 is a wasteful number, since it uses less digits than its factorization.

212002112220102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641398885 (or 641398879 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212002112220102 its reverse (201022211200212), we get a palindrome (413024323420314).

The spelling of 212002112220102 in words is "two hundred twelve trillion, two billion, one hundred twelve million, two hundred twenty thousand, one hundred two".