11012121201222 has 64 divisors (see below), whose sum is σ = 27037433180160. Its totient is φ = 3304575153792.

The previous prime is 11012121201161. The next prime is 11012121201223. The reversal of 11012121201222 is 22210212121011.

11012121201222 is a `hidden beast` number, since 110 + 1 + 212 + 120 + 1 + 222 = 666.

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 = 11012121201195 and 11012121201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012121201223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 260756598 + ... + 260798825.

It is an arithmetic number, because the mean of its divisors is an integer number (422459893440).

Almost surely, 2^{11012121201222} is an apocalyptic number.

11012121201222 is an abundant number, since it is smaller than the sum of its proper divisors (16025311978938).

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

11012121201222 is a wasteful number, since it uses less digits than its factorization.

11012121201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521555474 (or 521555468 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11012121201222 its reverse (22210212121011), we get a palindrome (33222333322233).

The spelling of 11012121201222 in words is "eleven trillion, twelve billion, one hundred twenty-one million, two hundred one thousand, two hundred twenty-two".