223126696242 has 18 divisors (see below), whose sum is σ = 483445517373. Its totient is φ = 74374897392.

The previous prime is 223126696223. The next prime is 223126696283. The reversal of 223126696242 is 242696621322.

223126696242 is a `hidden beast` number, since 2 + 2 + 3 + 12 + 6 + 6 + 9 + 624 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 220579576281 + 2547119961 = 469659^2 + 50469^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=334011.

It is a super-3 number, since 3×223126696242³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1948398 + ... + 2059734.

Almost surely, 2^223126696242 is an apocalyptic number.

223126696242 is an abundant number, since it is smaller than the sum of its proper divisors (260318821131).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223126696242 is an frugal number, since it uses more digits than its factorization.

223126696242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222682 (or 111342 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The spelling of 223126696242 in words is "two hundred twenty-three billion, one hundred twenty-six million, six hundred ninety-six thousand, two hundred forty-two".