222505421134544 has 10 divisors (see below), whose sum is σ = 431104253448210. Its totient is φ = 111252710567264.

The previous prime is 222505421134523. The next prime is 222505421134573. The reversal of 222505421134544 is 445431124505222.

It can be written as a sum of positive squares in only one way, i.e., 221652901312144 + 852519822400 = 14888012^2 + 923320^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222505421134495 and 222505421134504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6953294410439 + ... + 6953294410470.

It is an arithmetic number, because the mean of its divisors is an integer number (43110425344821).

Almost surely, 2^{222505421134544} is an apocalyptic number.

It is an amenable number.

222505421134544 is a deficient number, since it is larger than the sum of its proper divisors (208598832313666).

222505421134544 is a wasteful number, since it uses less digits than its factorization.

222505421134544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13906588820917 (or 13906588820911 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 44.

Adding to 222505421134544 its reverse (445431124505222), we get a palindrome (667936545639766).

The spelling of 222505421134544 in words is "two hundred twenty-two trillion, five hundred five billion, four hundred twenty-one million, one hundred thirty-four thousand, five hundred forty-four".