22212111121222 has 64 divisors (see below), whose sum is σ = 36689880268800. Its totient is φ = 10001488068000.

The previous prime is 22212111121217. The next prime is 22212111121247.

22212111121222 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (22).

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

It is a junction number, because it is equal to n+sod(n) for n = 22212111121193 and 22212111121202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5366538429 + ... + 5366542567.

It is an arithmetic number, because the mean of its divisors is an integer number (573279379200).

Almost surely, 2^{22212111121222} is an apocalyptic number.

22212111121222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22212111121222 is a deficient number, since it is larger than the sum of its proper divisors (14477769147578).

22212111121222 is a wasteful number, since it uses less digits than its factorization.

22212111121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7153.

The product of its digits is 256, while the sum is 22.

Multiplying 22212111121222 by its sum of digits (22), we get a palindrome (488666444666884).

It can be divided in two parts, 2221211 and 1121222, that added together give a palindrome (3342433).

The spelling of 22212111121222 in words is "twenty-two trillion, two hundred twelve billion, one hundred eleven million, one hundred twenty-one thousand, two hundred twenty-two".