2201154551 has 4 divisors (see below), whose sum is σ = 2234007672. Its totient is φ = 2168301432.

The previous prime is 2201154547. The next prime is 2201154569. The reversal of 2201154551 is 1554511022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1554511022 = 2 ⋅777255511.

It is a cyclic number.

It is not a de Polignac number, because 2201154551 - 2² = 2201154547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2201154551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201154511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16426460 + ... + 16426593.

It is an arithmetic number, because the mean of its divisors is an integer number (558501918).

Almost surely, 2^2201154551 is an apocalyptic number.

2201154551 is a deficient number, since it is larger than the sum of its proper divisors (32853121).

2201154551 is an equidigital number, since it uses as much as digits as its factorization.

2201154551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32853120.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 2201154551 is about 46916.4635389327. The cubic root of 2201154551 is about 1300.8189220869.

Adding to 2201154551 its reverse (1554511022), we get a palindrome (3755665573).

The spelling of 2201154551 in words is "two billion, two hundred one million, one hundred fifty-four thousand, five hundred fifty-one".