22113211222 has 4 divisors (see below), whose sum is σ = 33169816836. Its totient is φ = 11056605610.

The previous prime is 22113211217. The next prime is 22113211229. The reversal of 22113211222 is 22211231122.

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

It is a super-2 number, since 2×22113211222² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22113211222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22113211229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5528302804 + ... + 5528302807.

It is an arithmetic number, because the mean of its divisors is an integer number (8292454209).

Almost surely, 2^22113211222 is an apocalyptic number.

22113211222 is a deficient number, since it is larger than the sum of its proper divisors (11056605614).

22113211222 is a wasteful number, since it uses less digits than its factorization.

22113211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11056605613.

The product of its digits is 192, while the sum is 19.

Adding to 22113211222 its reverse (22211231122), we get a palindrome (44324442344).

The spelling of 22113211222 in words is "twenty-two billion, one hundred thirteen million, two hundred eleven thousand, two hundred twenty-two".