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20220011222020 = 2255250171925653
BaseRepresentation
bin1001001100011110101101…
…00101100001010000000100
32122121000101100101121010021
410212033112211201100010
510122241040333101040
6111000540034104524
74154563504402021
oct446172645412004
978530340347107
1020220011222020
116496293222555
122326934a1b144
13b3897b40968c
144dc921d06548
15250e8004124a
hex1263d6961404

20220011222020 has 24 divisors (see below), whose sum is σ = 42462126494424. Its totient is φ = 8087984883456.

The previous prime is 20220011221999. The next prime is 20220011222039. The reversal of 20220011222020 is 2022211002202.

It can be written as a sum of positive squares in 4 ways, for example, as 4917253030144 + 15302758191876 = 2217488^2 + 3911874^2 .

It is a super-3 number, since 3×202200112220203 (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 20220011221985 and 20220011222003.

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, 9537514 + ... + 11463166.

It is an arithmetic number, because the mean of its divisors is an integer number (1769255270601).

Almost surely, 220220011222020 is an apocalyptic number.

20220011222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20220011222020 is an abundant number, since it is smaller than the sum of its proper divisors (22242115272404).

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

20220011222020 is a wasteful number, since it uses less digits than its factorization.

20220011222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2450679 (or 2450677 counting only the distinct ones).

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

Adding to 20220011222020 its reverse (2022211002202), we get a palindrome (22242222224222).

The spelling of 20220011222020 in words is "twenty trillion, two hundred twenty billion, eleven million, two hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 525017 1050034 1925653 2100068 2625085 3851306 5250170 7702612 9628265 10500340 19256530 38513060 1011000561101 2022001122202 4044002244404 5055002805505 10110005611010 20220011222020