2212222121223 has 16 divisors (see below), whose sum is σ = 3023894395872. Its totient is φ = 1437737600000.

The previous prime is 2212222121191. The next prime is 2212222121273. The reversal of 2212222121223 is 3221212222122.

It is a cyclic number.

It is not a de Polignac number, because 2212222121223 - 2⁵ = 2212222121191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2212222121193 and 2212222121202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212222121273) 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, 6752178 + ... + 7072223.

It is an arithmetic number, because the mean of its divisors is an integer number (188993399742).

Almost surely, 2^{2212222121223} is an apocalyptic number.

2212222121223 is a deficient number, since it is larger than the sum of its proper divisors (811672274649).

2212222121223 is a wasteful number, since it uses less digits than its factorization.

2212222121223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13825746.

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

Adding to 2212222121223 its reverse (3221212222122), we get a palindrome (5433434343345).

The spelling of 2212222121223 in words is "two trillion, two hundred twelve billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred twenty-three".