22221271298 has 6 divisors (see below), whose sum is σ = 33332223171. Its totient is φ = 11110530242.

The previous prime is 22221271271. The next prime is 22221271327. The reversal of 22221271298 is 89217212222.

It can be written as a sum of positive squares in only one way, i.e., 11110635649 + 11110635649 = 105407^2 + 105407^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=105407.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 158111 + ... + 263517.

Almost surely, 2^22221271298 is an apocalyptic number.

22221271298 is a deficient number, since it is larger than the sum of its proper divisors (11110951873).

22221271298 is an frugal number, since it uses more digits than its factorization.

22221271298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210816 (or 105409 counting only the distinct ones).

The product of its digits is 32256, while the sum is 38.

The spelling of 22221271298 in words is "twenty-two billion, two hundred twenty-one million, two hundred seventy-one thousand, two hundred ninety-eight".