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20220211020 = 22351272653571
BaseRepresentation
bin10010110101001101…
…111110111101001100
31221012011220010222110
4102311031332331030
5312402333223040
613142233144020
71314034646352
oct226515767514
957164803873
1020220211020
1186368668a9
123b0385b010
131ba31ba409
14d9b6497d2
157d5268980
hex4b537ef4c

20220211020 has 48 divisors (see below), whose sum is σ = 57062412288. Its totient is φ = 5349597120.

The previous prime is 20220210991. The next prime is 20220211049. The reversal of 20220211020 is 2011202202.

It is an interprime number because it is at equal distance from previous prime (20220210991) and next prime (20220211049).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20220210987 and 20220211005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1319166 + ... + 1334405.

It is an arithmetic number, because the mean of its divisors is an integer number (1188800256).

Almost surely, 220220211020 is an apocalyptic number.

20220211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20220211020 is an abundant number, since it is smaller than the sum of its proper divisors (36842201268).

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

20220211020 is a wasteful number, since it uses less digits than its factorization.

20220211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2653710 (or 2653708 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20220211020 its reverse (2011202202), we get a palindrome (22231413222).

The spelling of 20220211020 in words is "twenty billion, two hundred twenty million, two hundred eleven thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 127 254 381 508 635 762 1270 1524 1905 2540 3810 7620 2653571 5307142 7960713 10614284 13267855 15921426 26535710 31842852 39803565 53071420 79607130 159214260 337003517 674007034 1011010551 1348014068 1685017585 2022021102 3370035170 4044042204 5055052755 6740070340 10110105510 20220211020