22272169487 has 4 divisors (see below), whose sum is σ = 22272474120. Its totient is φ = 22271864856.

The previous prime is 22272169471. The next prime is 22272169537. The reversal of 22272169487 is 78496127222.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22272169487 - 2⁴ = 22272169471 is a prime.

It is a deceptive number, since it divides R_22272169486.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22272169427) 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, 30464 + ... + 213242.

It is an arithmetic number, because the mean of its divisors is an integer number (5568118530).

Almost surely, 2^22272169487 is an apocalyptic number.

22272169487 is the 121853-rd pentagonal number.

22272169487 is a deficient number, since it is larger than the sum of its proper divisors (304633).

22272169487 is a wasteful number, since it uses less digits than its factorization.

22272169487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304632.

The product of its digits is 1354752, while the sum is 50.

The spelling of 22272169487 in words is "twenty-two billion, two hundred seventy-two million, one hundred sixty-nine thousand, four hundred eighty-seven".