222011021123 has 4 divisors (see below), whose sum is σ = 226199908368. Its totient is φ = 217822133880.

The previous prime is 222011021101. The next prime is 222011021143. The reversal of 222011021123 is 321120110222.

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 222011021123 - 2²⁴ = 221994243907 is a prime.

It is a super-2 number, since 2×222011021123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222011021143) 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, 2094443543 + ... + 2094443648.

It is an arithmetic number, because the mean of its divisors is an integer number (56549977092).

Almost surely, 2^222011021123 is an apocalyptic number.

222011021123 is a deficient number, since it is larger than the sum of its proper divisors (4188887245).

222011021123 is an equidigital number, since it uses as much as digits as its factorization.

222011021123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4188887244.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 222011021123 its reverse (321120110222), we get a palindrome (543131131345).

The spelling of 222011021123 in words is "two hundred twenty-two billion, eleven million, twenty-one thousand, one hundred twenty-three".