11221020111212 has 6 divisors (see below), whose sum is σ = 19636785194628. Its totient is φ = 5610510055604.

The previous prime is 11221020111209. The next prime is 11221020111247. The reversal of 11221020111212 is 21211102012211.

11221020111212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11221020111212² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402627513898 + ... + 1402627513905.

It is an arithmetic number, because the mean of its divisors is an integer number (3272797532438).

Almost surely, 2^{11221020111212} is an apocalyptic number.

It is an amenable number.

11221020111212 is a deficient number, since it is larger than the sum of its proper divisors (8415765083416).

11221020111212 is a wasteful number, since it uses less digits than its factorization.

11221020111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805255027807 (or 2805255027805 counting only the distinct ones).

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

Adding to 11221020111212 its reverse (21211102012211), we get a palindrome (32432122123423).

The spelling of 11221020111212 in words is "eleven trillion, two hundred twenty-one billion, twenty million, one hundred eleven thousand, two hundred twelve".