220211022123 has 12 divisors (see below), whose sum is σ = 325479857560. Its totient is φ = 143393223456.

The previous prime is 220211022079. The next prime is 220211022133. The reversal of 220211022123 is 321220112022.

It is a de Polignac number, because none of the positive numbers 2^k-220211022123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220211022096 and 220211022105.

It is not an unprimeable number, because it can be changed into a prime (220211022133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284509978 + ... + 284510751.

Almost surely, 2^220211022123 is an apocalyptic number.

220211022123 is a deficient number, since it is larger than the sum of its proper divisors (105268835437).

220211022123 is a wasteful number, since it uses less digits than its factorization.

220211022123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569020778 (or 569020775 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 220211022123 its reverse (321220112022), we get a palindrome (541431134145).

The spelling of 220211022123 in words is "two hundred twenty billion, two hundred eleven million, twenty-two thousand, one hundred twenty-three".