11212021202222 has 4 divisors (see below), whose sum is σ = 16818031803336. Its totient is φ = 5606010601110.

The previous prime is 11212021202171. The next prime is 11212021202227. The reversal of 11212021202222 is 22220212021211.

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

It is a junction number, because it is equal to n+sod(n) for n = 11212021202194 and 11212021202203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212021202227) 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, 2803005300554 + ... + 2803005300557.

It is an arithmetic number, because the mean of its divisors is an integer number (4204507950834).

Almost surely, 2^{11212021202222} is an apocalyptic number.

11212021202222 is a deficient number, since it is larger than the sum of its proper divisors (5606010601114).

11212021202222 is an equidigital number, since it uses as much as digits as its factorization.

11212021202222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5606010601113.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11212021202222 its reverse (22220212021211), we get a palindrome (33432233223433).

The spelling of 11212021202222 in words is "eleven trillion, two hundred twelve billion, twenty-one million, two hundred two thousand, two hundred twenty-two".