20222012221020 has 36 divisors (see below), whose sum is σ = 61340103737640. Its totient is φ = 5392536592224.

The previous prime is 20222012221009. The next prime is 20222012221079. The reversal of 20222012221020 is 2012221022202.

20222012221020 is a `hidden beast` number, since 202 + 220 + 1 + 2 + 221 + 0 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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 = 20222012220984 and 20222012221002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56172255990 + ... + 56172256349.

It is an arithmetic number, because the mean of its divisors is an integer number (1703891770490).

Almost surely, 2^{20222012221020} is an apocalyptic number.

20222012221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20222012221020 is an abundant number, since it is smaller than the sum of its proper divisors (41118091516620).

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

20222012221020 is a wasteful number, since it uses less digits than its factorization.

20222012221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112344512354 (or 112344512349 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20222012221020 its reverse (2012221022202), we get a palindrome (22234233243222).

The spelling of 20222012221020 in words is "twenty trillion, two hundred twenty-two billion, twelve million, two hundred twenty-one thousand, twenty".