222121001121223 has 4 divisors (see below), whose sum is σ = 222602825419128. Its totient is φ = 221639176823320.

The previous prime is 222121001121209. The next prime is 222121001121247. The reversal of 222121001121223 is 322121100121222.

222121001121223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222121001121223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222121001121194 and 222121001121203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222121001121203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240912148261 + ... + 240912149182.

It is an arithmetic number, because the mean of its divisors is an integer number (55650706354782).

Almost surely, 2^{222121001121223} is an apocalyptic number.

222121001121223 is a deficient number, since it is larger than the sum of its proper divisors (481824297905).

222121001121223 is an equidigital number, since it uses as much as digits as its factorization.

222121001121223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481824297904.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 222121001121223 its reverse (322121100121222), we get a palindrome (544242101242445).

The spelling of 222121001121223 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, one million, one hundred twenty-one thousand, two hundred twenty-three".