212133323402 has 576 divisors, whose sum is σ = 498846781440. Its totient is φ = 66653072640.

The previous prime is 212133323341. The next prime is 212133323417. The reversal of 212133323402 is 204323331212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 3166168973 + ... + 3166169039.

It is an arithmetic number, because the mean of its divisors is an integer number (866053440).

Almost surely, 2^212133323402 is an apocalyptic number.

212133323402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212133323402 is an abundant number, since it is smaller than the sum of its proper divisors (286713458038).

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

212133323402 is a wasteful number, since it uses less digits than its factorization.

212133323402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 212133323402 its reverse (204323331212), we get a palindrome (416456654614).

It can be divided in two parts, 212133 and 323402, that added together give a palindrome (535535).

The spelling of 212133323402 in words is "two hundred twelve billion, one hundred thirty-three million, three hundred twenty-three thousand, four hundred two".