22001413551 has 24 divisors (see below), whose sum is σ = 31940986896. Its totient is φ = 13464472320.

The previous prime is 22001413547. The next prime is 22001413561. The reversal of 22001413551 is 15531410022.

It is a happy number.

It is not a de Polignac number, because 22001413551 - 2² = 22001413547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001413561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28110 + ... + 211643.

It is an arithmetic number, because the mean of its divisors is an integer number (1330874454).

Almost surely, 2^22001413551 is an apocalyptic number.

22001413551 is a deficient number, since it is larger than the sum of its proper divisors (9939573345).

22001413551 is a wasteful number, since it uses less digits than its factorization.

22001413551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239963 (or 239950 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 22001413551 its reverse (15531410022), we get a palindrome (37532823573).

The spelling of 22001413551 in words is "twenty-two billion, one million, four hundred thirteen thousand, five hundred fifty-one".