223134100021 has 16 divisors (see below), whose sum is σ = 260492069376. Its totient is φ = 187148295936.

The previous prime is 223134100009. The next prime is 223134100037. The reversal of 223134100021 is 120001431322.

It is a happy number.

It is not a de Polignac number, because 223134100021 - 2²⁵ = 223100545589 is a prime.

It is a super-3 number, since 3×223134100021³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223134100121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1514395 + ... + 1655191.

It is an arithmetic number, because the mean of its divisors is an integer number (16280754336).

Almost surely, 2^223134100021 is an apocalyptic number.

It is an amenable number.

223134100021 is a deficient number, since it is larger than the sum of its proper divisors (37357969355).

223134100021 is a wasteful number, since it uses less digits than its factorization.

223134100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145668.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 223134100021 its reverse (120001431322), we get a palindrome (343135531343).

The spelling of 223134100021 in words is "two hundred twenty-three billion, one hundred thirty-four million, one hundred thousand, twenty-one".