22011220110212 has 6 divisors (see below), whose sum is σ = 38519635192878. Its totient is φ = 11005610055104.

The previous prime is 22011220110211. The next prime is 22011220110223. The reversal of 22011220110212 is 21201102211022.

It can be written as a sum of positive squares in only one way, i.e., 18133408455556 + 3877811654656 = 4258334^2 + 1969216^2 .

It is not an unprimeable number, because it can be changed into a prime (22011220110211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2751402513773 + ... + 2751402513780.

It is an arithmetic number, because the mean of its divisors is an integer number (6419939198813).

Almost surely, 2^{22011220110212} is an apocalyptic number.

It is an amenable number.

22011220110212 is a deficient number, since it is larger than the sum of its proper divisors (16508415082666).

22011220110212 is a wasteful number, since it uses less digits than its factorization.

22011220110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5502805027557 (or 5502805027555 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22011220110212 its reverse (21201102211022), we get a palindrome (43212322321234).

The spelling of 22011220110212 in words is "twenty-two trillion, eleven billion, two hundred twenty million, one hundred ten thousand, two hundred twelve".