212422134403400 has 48 divisors (see below), whose sum is σ = 493897491662400. Its totient is φ = 84966096054080.

The previous prime is 212422134403397. The next prime is 212422134403411. The reversal of 212422134403400 is 4304431224212.

It is a happy number.

It is a super-2 number, since 2×212422134403400² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 11052452 + ... + 23388051.

It is an arithmetic number, because the mean of its divisors is an integer number (10289531076300).

Almost surely, 2^{212422134403400} is an apocalyptic number.

212422134403400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212422134403400 is an abundant number, since it is smaller than the sum of its proper divisors (281475357259000).

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

212422134403400 is a wasteful number, since it uses less digits than its factorization.

212422134403400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34471358 (or 34471349 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 212422134403400 its reverse (4304431224212), we get a palindrome (216726565627612).

The spelling of 212422134403400 in words is "two hundred twelve trillion, four hundred twenty-two billion, one hundred thirty-four million, four hundred three thousand, four hundred".