11101001220212 has 6 divisors (see below), whose sum is σ = 19426752135378. Its totient is φ = 5550500610104.

The previous prime is 11101001220193. The next prime is 11101001220227. The reversal of 11101001220212 is 21202210010111.

It can be written as a sum of positive squares in only one way, i.e., 10169440369936 + 931560850276 = 3188956^2 + 965174^2 .

It is a super-2 number, since 2×11101001220212² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1387625152523 + ... + 1387625152530.

It is an arithmetic number, because the mean of its divisors is an integer number (3237792022563).

Almost surely, 2^{11101001220212} is an apocalyptic number.

It is an amenable number.

11101001220212 is a deficient number, since it is larger than the sum of its proper divisors (8325750915166).

11101001220212 is a wasteful number, since it uses less digits than its factorization.

11101001220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775250305057 (or 2775250305055 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11101001220212 its reverse (21202210010111), we get a palindrome (32303211230323).

The spelling of 11101001220212 in words is "eleven trillion, one hundred one billion, one million, two hundred twenty thousand, two hundred twelve".