2221050551 has 8 divisors (see below), whose sum is σ = 2239908720. Its totient is φ = 2202256512.

The previous prime is 2221050547. The next prime is 2221050571. The reversal of 2221050551 is 1550501222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2221050551 - 2² = 2221050547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221050571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54845 + ... + 86313.

It is an arithmetic number, because the mean of its divisors is an integer number (279988590).

Almost surely, 2^2221050551 is an apocalyptic number.

2221050551 is a deficient number, since it is larger than the sum of its proper divisors (18858169).

2221050551 is a wasteful number, since it uses less digits than its factorization.

2221050551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32065.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 2221050551 is about 47128.0229905732. The cubic root of 2221050551 is about 1304.7264931822.

Adding to 2221050551 its reverse (1550501222), we get a palindrome (3771551773).

The spelling of 2221050551 in words is "two billion, two hundred twenty-one million, fifty thousand, five hundred fifty-one".