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2022011221020 = 2235731428936209
BaseRepresentation
bin11101011011001001010…
…000101011010000011100
321011022011102211201210020
4131123021100223100130
5231112034333033040
64144522113512140
7266041215540060
oct35331120532034
97138142751706
102022011221020
1170a591690a3a
12287a67572650
131188a08148cb
146dc19d11aa0
15378e55c5cd0
hex1d6c942b41c

2022011221020 has 192 divisors, whose sum is σ = 6680901427200. Its totient is φ = 447148523520.

The previous prime is 2022011220997. The next prime is 2022011221039. The reversal of 2022011221020 is 201221102202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 55824676 + ... + 55860884.

It is an arithmetic number, because the mean of its divisors is an integer number (34796361600).

Almost surely, 22022011221020 is an apocalyptic number.

2022011221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2022011221020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3340450713600).

2022011221020 is an abundant number, since it is smaller than the sum of its proper divisors (4658890206180).

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

2022011221020 is a wasteful number, since it uses less digits than its factorization.

2022011221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40548 (or 40546 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2022011221020 its reverse (201221102202), we get a palindrome (2223232323222).

The spelling of 2022011221020 in words is "two trillion, twenty-two billion, eleven million, two hundred twenty-one thousand, twenty".