212004212102 has 16 divisors (see below), whose sum is σ = 344543099472. Its totient is φ = 97446531840.

The previous prime is 212004212093. The next prime is 212004212177. The reversal of 212004212102 is 201212400212.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72503399 + ... + 72506322.

It is an arithmetic number, because the mean of its divisors is an integer number (21533943717).

Almost surely, 2^212004212102 is an apocalyptic number.

212004212102 is a deficient number, since it is larger than the sum of its proper divisors (132538887370).

212004212102 is a wasteful number, since it uses less digits than its factorization.

212004212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145009783.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212004212102 its reverse (201212400212), we get a palindrome (413216612314).

The spelling of 212004212102 in words is "two hundred twelve billion, four million, two hundred twelve thousand, one hundred two".