2551222201 has 16 divisors (see below), whose sum is σ = 2810212416. Its totient is φ = 2315940000.

The previous prime is 2551222189. The next prime is 2551222217. The reversal of 2551222201 is 1022221552.

It is not a de Polignac number, because 2551222201 - 2⁷ = 2551222073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2551222001) 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, 1757526 + ... + 1758976.

It is an arithmetic number, because the mean of its divisors is an integer number (175638276).

Almost surely, 2^2551222201 is an apocalyptic number.

It is an amenable number.

2551222201 is a deficient number, since it is larger than the sum of its proper divisors (258990215).

2551222201 is a wasteful number, since it uses less digits than its factorization.

2551222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805 (or 2783 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 2551222201 is about 50509.6248352727. The cubic root of 2551222201 is about 1366.4154434583.

Adding to 2551222201 its reverse (1022221552), we get a palindrome (3573443753).

The spelling of 2551222201 in words is "two billion, five hundred fifty-one million, two hundred twenty-two thousand, two hundred one".