22020212011920 has 40 divisors (see below), whose sum is σ = 68262657237696. Its totient is φ = 5872056536448.

The previous prime is 22020212011913. The next prime is 22020212011921. The reversal of 22020212011920 is 2911021202022.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (22020212011921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45875441452 + ... + 45875441931.

Almost surely, 2^{22020212011920} is an apocalyptic number.

22020212011920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22020212011920 is an abundant number, since it is smaller than the sum of its proper divisors (46242445225776).

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

22020212011920 is a wasteful number, since it uses less digits than its factorization.

22020212011920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91750883399 (or 91750883393 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 22020212011920 its reverse (2911021202022), we get a palindrome (24931233213942).

The spelling of 22020212011920 in words is "twenty-two trillion, twenty billion, two hundred twelve million, eleven thousand, nine hundred twenty".