22002143551 has 16 divisors (see below), whose sum is σ = 23520397824. Its totient is φ = 20531849184.

The previous prime is 22002143549. The next prime is 22002143587. The reversal of 22002143551 is 15534120022.

It is a cyclic number.

It is not a de Polignac number, because 22002143551 - 2¹ = 22002143549 is a prime.

It is a super-3 number, since 3×22002143551³ (a number of 32 digits) contains 333 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 (22002143521) 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, 854670 + ... + 880036.

It is an arithmetic number, because the mean of its divisors is an integer number (1470024864).

Almost surely, 2^22002143551 is an apocalyptic number.

22002143551 is a deficient number, since it is larger than the sum of its proper divisors (1518254273).

22002143551 is a wasteful number, since it uses less digits than its factorization.

22002143551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26310.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 22002143551 its reverse (15534120022), we get a palindrome (37536263573).

The spelling of 22002143551 in words is "twenty-two billion, two million, one hundred forty-three thousand, five hundred fifty-one".