21112222202223 has 32 divisors (see below), whose sum is σ = 28481207758080. Its totient is φ = 13909712843520.

The previous prime is 21112222202213. The next prime is 21112222202329. The reversal of 21112222202223 is 32220222221112.

It is not a de Polignac number, because 21112222202223 - 2¹³ = 21112222194031 is a prime.

It is a super-2 number, since 2×21112222202223² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21112222202193 and 21112222202202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112222202213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 482510115 + ... + 482553867.

It is an arithmetic number, because the mean of its divisors is an integer number (890037742440).

Almost surely, 2^{21112222202223} is an apocalyptic number.

21112222202223 is a deficient number, since it is larger than the sum of its proper divisors (7368985555857).

21112222202223 is a wasteful number, since it uses less digits than its factorization.

21112222202223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47639.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 21112222202223 its reverse (32220222221112), we get a palindrome (53332444423335).

The spelling of 21112222202223 in words is "twenty-one trillion, one hundred twelve billion, two hundred twenty-two million, two hundred two thousand, two hundred twenty-three".