222220321211123 has 4 divisors (see below), whose sum is σ = 223970087520000. Its totient is φ = 220470554902248.

The previous prime is 222220321211117. The next prime is 222220321211149. The reversal of 222220321211123 is 321112123022222.

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

It is a cyclic number.

It is not a de Polignac number, because 222220321211123 - 2¹⁶ = 222220321145587 is a prime.

It is a super-2 number, since 2×222220321211123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222220321211092 and 222220321211101.

It is not an unprimeable number, because it can be changed into a prime (222220321211323) 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, 874883154248 + ... + 874883154501.

It is an arithmetic number, because the mean of its divisors is an integer number (55992521880000).

Almost surely, 2^{222220321211123} is an apocalyptic number.

222220321211123 is a deficient number, since it is larger than the sum of its proper divisors (1749766308877).

222220321211123 is a wasteful number, since it uses less digits than its factorization.

222220321211123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749766308876.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 222220321211123 its reverse (321112123022222), we get a palindrome (543332444233345).

The spelling of 222220321211123 in words is "two hundred twenty-two trillion, two hundred twenty billion, three hundred twenty-one million, two hundred eleven thousand, one hundred twenty-three".