11220121220212 has 24 divisors (see below), whose sum is σ = 19712876988672. Its totient is φ = 5587913124000.

The previous prime is 11220121220201. The next prime is 11220121220227. The reversal of 11220121220212 is 21202212102211.

11220121220212 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 2×11220121220212² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11220121220212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4251664 + ... + 6365287.

It is an arithmetic number, because the mean of its divisors is an integer number (821369874528).

Almost surely, 2^{11220121220212} is an apocalyptic number.

It is an amenable number.

11220121220212 is a deficient number, since it is larger than the sum of its proper divisors (8492755768460).

11220121220212 is a wasteful number, since it uses less digits than its factorization.

11220121220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10617999 (or 10617997 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11220121220212 its reverse (21202212102211), we get a palindrome (32422333322423).

The spelling of 11220121220212 in words is "eleven trillion, two hundred twenty billion, one hundred twenty-one million, two hundred twenty thousand, two hundred twelve".