22011121212020 has 24 divisors (see below), whose sum is σ = 46224106989984. Its totient is φ = 8804305162016.

The previous prime is 22011121212013. The next prime is 22011121212037. The reversal of 22011121212020 is 2021212111022.

It is a self number, because there is not a number n which added to its sum of digits gives 22011121212020.

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, 7693994 + ... + 10159713.

It is an arithmetic number, because the mean of its divisors is an integer number (1926004457916).

Almost surely, 2^{22011121212020} is an apocalyptic number.

22011121212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011121212020 is an abundant number, since it is smaller than the sum of its proper divisors (24212985777964).

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

22011121212020 is a wasteful number, since it uses less digits than its factorization.

22011121212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17915359 (or 17915357 counting only the distinct ones).

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

Adding to 22011121212020 its reverse (2021212111022), we get a palindrome (24032333323042).

The spelling of 22011121212020 in words is "twenty-two trillion, eleven billion, one hundred twenty-one million, two hundred twelve thousand, twenty".