22211222211222 has 32 divisors (see below), whose sum is σ = 49770601127424. Its totient is φ = 6548763304800.

The previous prime is 22211222211209. The next prime is 22211222211253.

It is a happy number.

22211222211222 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×22211222211222² (a number of 27 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 22211222211192 and 22211222211201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4547749854 + ... + 4547754737.

It is an arithmetic number, because the mean of its divisors is an integer number (1555331285232).

Almost surely, 2^{22211222211222} is an apocalyptic number.

22211222211222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22211222211222 is an abundant number, since it is smaller than the sum of its proper divisors (27559378916202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22211222211222 is a wasteful number, since it uses less digits than its factorization.

22211222211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9095504644.

The product of its digits is 1024, while the sum is 24.

It can be divided in two parts, 2221122 and 2211222, that added together give a palindrome (4432344).

The spelling of 22211222211222 in words is "twenty-two trillion, two hundred eleven billion, two hundred twenty-two million, two hundred eleven thousand, two hundred twenty-two".