211242022134 has 128 divisors (see below), whose sum is σ = 533388022272. Its totient is φ = 54782576640.

The previous prime is 211242022099. The next prime is 211242022207. The reversal of 211242022134 is 431220242112.

211242022134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211242022134² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 869184 + ... + 1085340.

It is an arithmetic number, because the mean of its divisors is an integer number (4167093924).

Almost surely, 2^211242022134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211242022134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266694011136).

211242022134 is an abundant number, since it is smaller than the sum of its proper divisors (322146000138).

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

211242022134 is a wasteful number, since it uses less digits than its factorization.

211242022134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216270.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 211242022134 its reverse (431220242112), we get a palindrome (642462264246).

The spelling of 211242022134 in words is "two hundred eleven billion, two hundred forty-two million, twenty-two thousand, one hundred thirty-four".