211223434055054 has 4 divisors (see below), whose sum is σ = 316835151082584. Its totient is φ = 105611717027526.

The previous prime is 211223434054999. The next prime is 211223434055059. The reversal of 211223434055054 is 450550434322112.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211223434055059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52805858513762 + ... + 52805858513765.

It is an arithmetic number, because the mean of its divisors is an integer number (79208787770646).

Almost surely, 2^{211223434055054} is an apocalyptic number.

211223434055054 is a deficient number, since it is larger than the sum of its proper divisors (105611717027530).

211223434055054 is a wasteful number, since it uses less digits than its factorization.

211223434055054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105611717027529.

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 211223434055054 its reverse (450550434322112), we get a palindrome (661773868377166).

The spelling of 211223434055054 in words is "two hundred eleven trillion, two hundred twenty-three billion, four hundred thirty-four million, fifty-five thousand, fifty-four".