11212021102 has 4 divisors (see below), whose sum is σ = 16818031656. Its totient is φ = 5606010550.

The previous prime is 11212021097. The next prime is 11212021103. The reversal of 11212021102 is 20112021211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20112021211 = 29101 ⋅691111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212021103) 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, 2803005274 + ... + 2803005277.

It is an arithmetic number, because the mean of its divisors is an integer number (4204507914).

Almost surely, 2^11212021102 is an apocalyptic number.

11212021102 is a deficient number, since it is larger than the sum of its proper divisors (5606010554).

11212021102 is an equidigital number, since it uses as much as digits as its factorization.

11212021102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5606010553.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11212021102 its reverse (20112021211), we get a palindrome (31324042313).

The spelling of 11212021102 in words is "eleven billion, two hundred twelve million, twenty-one thousand, one hundred two".