11021220201222 has 64 divisors (see below), whose sum is σ = 30534982387200. Its totient is φ = 2862654596640.

The previous prime is 11021220201217. The next prime is 11021220201227. The reversal of 11021220201222 is 22210202212011.

It is a happy number.

11021220201222 is a `hidden beast` number, since 1 + 1 + 0 + 21 + 220 + 201 + 222 = 666.

It is an interprime number because it is at equal distance from previous prime (11021220201217) and next prime (11021220201227).

It is a super-3 number, since 3×11021220201222³ (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11021220201195 and 11021220201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021220201227) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 1325298897 + ... + 1325307212.

It is an arithmetic number, because the mean of its divisors is an integer number (477109099800).

Almost surely, 2^{11021220201222} is an apocalyptic number.

11021220201222 is an abundant number, since it is smaller than the sum of its proper divisors (19513762185978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11021220201222 is a wasteful number, since it uses less digits than its factorization.

11021220201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650606138 (or 2650606132 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11021220201222 its reverse (22210202212011), we get a palindrome (33231422413233).

The spelling of 11021220201222 in words is "eleven trillion, twenty-one billion, two hundred twenty million, two hundred one thousand, two hundred twenty-two".