221422010653364 has 24 divisors (see below), whose sum is σ = 397099708935048. Its totient is φ = 107967131240960.

The previous prime is 221422010653313. The next prime is 221422010653369. The reversal of 221422010653364 is 463356010224122.

It can be written as a sum of positive squares in 4 ways, for example, as 531671388964 + 220890339264400 = 729158^2 + 14862380^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221422010653369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272127929 + ... + 272940384.

It is an arithmetic number, because the mean of its divisors is an integer number (16545821205627).

Almost surely, 2^{221422010653364} is an apocalyptic number.

It is an amenable number.

221422010653364 is a deficient number, since it is larger than the sum of its proper divisors (175677698281684).

221422010653364 is a wasteful number, since it uses less digits than its factorization.

221422010653364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545070835 (or 545070833 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 41.

Adding to 221422010653364 its reverse (463356010224122), we get a palindrome (684778020877486).

The spelling of 221422010653364 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, ten million, six hundred fifty-three thousand, three hundred sixty-four".