22221230645633 has 16 divisors (see below), whose sum is σ = 23651220975696. Its totient is φ = 20804900044800.

The previous prime is 22221230645609. The next prime is 22221230645639. The reversal of 22221230645633 is 33654603212222.

It can be written as a sum of positive squares in 8 ways, for example, as 1777376911489 + 20443853734144 = 1333183^2 + 4521488^2 .

It is a cyclic number.

It is not a de Polignac number, because 22221230645633 - 2¹⁰ = 22221230644609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22221230645639) 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, 90764735 + ... + 91009227.

It is an arithmetic number, because the mean of its divisors is an integer number (1478201310981).

Almost surely, 2^{22221230645633} is an apocalyptic number.

It is an amenable number.

22221230645633 is a deficient number, since it is larger than the sum of its proper divisors (1429990330063).

22221230645633 is a wasteful number, since it uses less digits than its factorization.

22221230645633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272404.

The product of its (nonzero) digits is 622080, while the sum is 41.

Adding to 22221230645633 its reverse (33654603212222), we get a palindrome (55875833857855).

The spelling of 22221230645633 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred thirty million, six hundred forty-five thousand, six hundred thirty-three".