11111221012022 has 8 divisors (see below), whose sum is σ = 16895144278776. Its totient is φ = 5479506252432.

The previous prime is 11111221011923. The next prime is 11111221012027. The reversal of 11111221012022 is 22021012211111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111221012027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38052126608 + ... + 38052126899.

It is an arithmetic number, because the mean of its divisors is an integer number (2111893034847).

Almost surely, 2^{11111221012022} is an apocalyptic number.

11111221012022 is a deficient number, since it is larger than the sum of its proper divisors (5783923266754).

11111221012022 is an equidigital number, since it uses as much as digits as its factorization.

11111221012022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76104253582.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11111221012022 its reverse (22021012211111), we get a palindrome (33132233223133).

The spelling of 11111221012022 in words is "eleven trillion, one hundred eleven billion, two hundred twenty-one million, twelve thousand, twenty-two".