221020020012022 has 256 divisors, whose sum is σ = 451313513441280. Its totient is φ = 78565994496000.

The previous prime is 221020020011887. The next prime is 221020020012041. The reversal of 221020020012022 is 220210020020122.

It is a super-2 number, since 2×221020020012022² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221020020011987 and 221020020012005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2644402629 + ... + 2644486207.

It is an arithmetic number, because the mean of its divisors is an integer number (1762943411880).

Almost surely, 2^{221020020012022} is an apocalyptic number.

221020020012022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221020020012022 is an abundant number, since it is smaller than the sum of its proper divisors (230293493429258).

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

221020020012022 is a wasteful number, since it uses less digits than its factorization.

221020020012022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83927.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 221020020012022 its reverse (220210020020122), we get a palindrome (441230040032144).

It can be divided in two parts, 2210200 and 20012022, that added together give a palindrome (22222222).

The spelling of 221020020012022 in words is "two hundred twenty-one trillion, twenty billion, twenty million, twelve thousand, twenty-two".