16222422261 has 48 divisors (see below), whose sum is σ = 24203349504. Its totient is φ = 9643958016.

The previous prime is 16222422257. The next prime is 16222422313.

16222422261 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 16222422261 - 2² = 16222422257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16222422211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2129886 + ... + 2137488.

It is an arithmetic number, because the mean of its divisors is an integer number (504236448).

Almost surely, 2^16222422261 is an apocalyptic number.

It is an amenable number.

16222422261 is a deficient number, since it is larger than the sum of its proper divisors (7980927243).

16222422261 is a wasteful number, since it uses less digits than its factorization.

16222422261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7770 (or 7753 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

It can be divided in two parts, 1622242 and 2261, that added together give a triangular number (1624503 = T₁₈₀₂).

The spelling of 16222422261 in words is "sixteen billion, two hundred twenty-two million, four hundred twenty-two thousand, two hundred sixty-one".