11212012121022 has 32 divisors (see below), whose sum is σ = 26381204992800. Its totient is φ = 3517493998464.

The previous prime is 11212012121003. The next prime is 11212012121027. The reversal of 11212012121022 is 22012121021211.

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 = 11212012120986 and 11212012121004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212012121027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6106759497 + ... + 6106761332.

It is an arithmetic number, because the mean of its divisors is an integer number (824412656025).

Almost surely, 2^{11212012121022} is an apocalyptic number.

11212012121022 is an abundant number, since it is smaller than the sum of its proper divisors (15169192871778).

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

11212012121022 is a wasteful number, since it uses less digits than its factorization.

11212012121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12213520857 (or 12213520851 counting only the distinct ones).

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

Adding to 11212012121022 its reverse (22012121021211), we get a palindrome (33224133142233).

The spelling of 11212012121022 in words is "eleven trillion, two hundred twelve billion, twelve million, one hundred twenty-one thousand, twenty-two".