2122546651 has 4 divisors (see below), whose sum is σ = 2214831312. Its totient is φ = 2030261992.

The previous prime is 2122546631. The next prime is 2122546669. The reversal of 2122546651 is 1566452212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2122546651 - 2⁵ = 2122546619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122546631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46142296 + ... + 46142341.

It is an arithmetic number, because the mean of its divisors is an integer number (553707828).

Almost surely, 2^2122546651 is an apocalyptic number.

2122546651 is a deficient number, since it is larger than the sum of its proper divisors (92284661).

2122546651 is an equidigital number, since it uses as much as digits as its factorization.

2122546651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92284660.

The product of its digits is 28800, while the sum is 34.

The square root of 2122546651 is about 46071.1042954258. The cubic root of 2122546651 is about 1285.1458400084.

Adding to 2122546651 its reverse (1566452212), we get a palindrome (3688998863).

It can be divided in two parts, 21225 and 46651, that added together give a palindrome (67876).

The spelling of 2122546651 in words is "two billion, one hundred twenty-two million, five hundred forty-six thousand, six hundred fifty-one".