212012132202 has 36 divisors (see below), whose sum is σ = 497413086534. Its totient is φ = 65234501280.

The previous prime is 212012132179. The next prime is 212012132203. The reversal of 212012132202 is 202231210212.

It can be written as a sum of positive squares in 3 ways, for example, as 142627830921 + 69384301281 = 377661^2 + 263409^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (212012132203) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 34844449 + ... + 34850532.

Almost surely, 2^212012132202 is an apocalyptic number.

212012132202 is an abundant number, since it is smaller than the sum of its proper divisors (285400954332).

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

212012132202 is a wasteful number, since it uses less digits than its factorization.

212012132202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69695015 (or 69694999 counting only the distinct ones).

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

Adding to 212012132202 its reverse (202231210212), we get a palindrome (414243342414).

The spelling of 212012132202 in words is "two hundred twelve billion, twelve million, one hundred thirty-two thousand, two hundred two".