221112356054 has 32 divisors (see below), whose sum is σ = 354682722240. Its totient is φ = 103125721600.

The previous prime is 221112356053. The next prime is 221112356071. The reversal of 221112356054 is 450653211122.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 221112356054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221112356053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4579712 + ... + 4627740.

It is an arithmetic number, because the mean of its divisors is an integer number (11083835070).

Almost surely, 2^221112356054 is an apocalyptic number.

221112356054 is a deficient number, since it is larger than the sum of its proper divisors (133570366186).

221112356054 is a wasteful number, since it uses less digits than its factorization.

221112356054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50536.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 221112356054 its reverse (450653211122), we get a palindrome (671765567176).

The spelling of 221112356054 in words is "two hundred twenty-one billion, one hundred twelve million, three hundred fifty-six thousand, fifty-four".