22022224566451 has 4 divisors (see below), whose sum is σ = 22022233992304. Its totient is φ = 22022215140600.

The previous prime is 22022224566427. The next prime is 22022224566469. The reversal of 22022224566451 is 15466542222022.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22022224566451 - 2¹⁹ = 22022224042163 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22022224566398 and 22022224566407.

It is not an unprimeable number, because it can be changed into a prime (22022224560451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1703581 + ... + 6851761.

It is an arithmetic number, because the mean of its divisors is an integer number (5505558498076).

Almost surely, 2^{22022224566451} is an apocalyptic number.

22022224566451 is a deficient number, since it is larger than the sum of its proper divisors (9425853).

22022224566451 is an equidigital number, since it uses as much as digits as its factorization.

22022224566451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9425852.

The product of its (nonzero) digits is 921600, while the sum is 43.

Adding to 22022224566451 its reverse (15466542222022), we get a palindrome (37488766788473).

The spelling of 22022224566451 in words is "twenty-two trillion, twenty-two billion, two hundred twenty-four million, five hundred sixty-six thousand, four hundred fifty-one".