212134133401 has 4 divisors (see below), whose sum is σ = 212283210112. Its totient is φ = 211985056692.

The previous prime is 212134133399. The next prime is 212134133411. The reversal of 212134133401 is 104331431212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212134133401 - 2¹ = 212134133399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212134133411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74536221 + ... + 74539066.

It is an arithmetic number, because the mean of its divisors is an integer number (53070802528).

Almost surely, 2^212134133401 is an apocalyptic number.

It is an amenable number.

212134133401 is a deficient number, since it is larger than the sum of its proper divisors (149076711).

212134133401 is a wasteful number, since it uses less digits than its factorization.

212134133401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149076710.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 212134133401 its reverse (104331431212), we get a palindrome (316465564613).

The spelling of 212134133401 in words is "two hundred twelve billion, one hundred thirty-four million, one hundred thirty-three thousand, four hundred one".