221211201134 has 32 divisors (see below), whose sum is σ = 423314470656. Its totient is φ = 84181849920.

The previous prime is 221211201131. The next prime is 221211201139. The reversal of 221211201134 is 431102112122.

221211201134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221211201131) 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, 16696127 + ... + 16709370.

It is an arithmetic number, because the mean of its divisors is an integer number (13228577208).

Almost surely, 2^221211201134 is an apocalyptic number.

221211201134 is a deficient number, since it is larger than the sum of its proper divisors (202103269522).

221211201134 is a wasteful number, since it uses less digits than its factorization.

221211201134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33405560.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 221211201134 its reverse (431102112122), we get a palindrome (652313313256).

The spelling of 221211201134 in words is "two hundred twenty-one billion, two hundred eleven million, two hundred one thousand, one hundred thirty-four".