212400133422134 has 32 divisors (see below), whose sum is σ = 382068181393920. Its totient is φ = 86584432727232.

The previous prime is 212400133422131. The next prime is 212400133422233. The reversal of 212400133422134 is 431224331004212.

It is a happy number.

It is a super-2 number, since 2×212400133422134² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212400133422134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212400133422131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1842477959 + ... + 1842593234.

It is an arithmetic number, because the mean of its divisors is an integer number (11939630668560).

Almost surely, 2^{212400133422134} is an apocalyptic number.

212400133422134 is a deficient number, since it is larger than the sum of its proper divisors (169668047971786).

212400133422134 is a wasteful number, since it uses less digits than its factorization.

212400133422134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3685071404.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 212400133422134 its reverse (431224331004212), we get a palindrome (643624464426346).

The spelling of 212400133422134 in words is "two hundred twelve trillion, four hundred billion, one hundred thirty-three million, four hundred twenty-two thousand, one hundred thirty-four".