23222405403551 has 4 divisors (see below), whose sum is σ = 23222569407600. Its totient is φ = 23222241399504.

The previous prime is 23222405403499. The next prime is 23222405403553. The reversal of 23222405403551 is 15530450422232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23222405403551 is a prime.

It is a super-2 number, since 2×23222405403551² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23222405403553) 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, 81789446 + ... + 82072883.

It is an arithmetic number, because the mean of its divisors is an integer number (5805642351900).

Almost surely, 2^{23222405403551} is an apocalyptic number.

23222405403551 is a deficient number, since it is larger than the sum of its proper divisors (164004049).

23222405403551 is a wasteful number, since it uses less digits than its factorization.

23222405403551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164004048.

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 23222405403551 its reverse (15530450422232), we get a palindrome (38752855825783).

The spelling of 23222405403551 in words is "twenty-three trillion, two hundred twenty-two billion, four hundred five million, four hundred three thousand, five hundred fifty-one".