11220021021212 has 6 divisors (see below), whose sum is σ = 19635036787128. Its totient is φ = 5610010510604.

The previous prime is 11220021021113. The next prime is 11220021021217. The reversal of 11220021021212 is 21212012002211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220021021217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402502627648 + ... + 1402502627655.

It is an arithmetic number, because the mean of its divisors is an integer number (3272506131188).

Almost surely, 2^{11220021021212} is an apocalyptic number.

It is an amenable number.

11220021021212 is a deficient number, since it is larger than the sum of its proper divisors (8415015765916).

11220021021212 is a wasteful number, since it uses less digits than its factorization.

11220021021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805005255307 (or 2805005255305 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11220021021212 its reverse (21212012002211), we get a palindrome (32432033023423).

The spelling of 11220021021212 in words is "eleven trillion, two hundred twenty billion, twenty-one million, twenty-one thousand, two hundred twelve".