221413301441245 has 16 divisors (see below), whose sum is σ = 281845145500848. Its totient is φ = 166403037864960.

The previous prime is 221413301441209. The next prime is 221413301441273. The reversal of 221413301441245 is 542144103314122.

It can be written as a sum of positive squares in 8 ways, for example, as 3219132109636 + 218194169331609 = 1794194^2 + 14771397^2 .

It is not a de Polignac number, because 221413301441245 - 2⁹ = 221413301440733 is a prime.

It is a super-2 number, since 2×221413301441245² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2407405374 + ... + 2407497343.

It is an arithmetic number, because the mean of its divisors is an integer number (17615321593803).

Almost surely, 2^{221413301441245} is an apocalyptic number.

It is an amenable number.

221413301441245 is a deficient number, since it is larger than the sum of its proper divisors (60431844059603).

221413301441245 is a wasteful number, since it uses less digits than its factorization.

221413301441245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4814903280.

The product of its (nonzero) digits is 92160, while the sum is 37.

Adding to 221413301441245 its reverse (542144103314122), we get a palindrome (763557404755367).

The spelling of 221413301441245 in words is "two hundred twenty-one trillion, four hundred thirteen billion, three hundred one million, four hundred forty-one thousand, two hundred forty-five".