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2022021212 = 2271101157449
BaseRepresentation
bin111100010000101…
…1001100001011100
312012220210022122112
41320201121201130
513120114134322
6532350533152
7101051616401
oct17041314134
95186708575
102022021212
11948418512
124852071b8
13262bb7773
1415278c2a8
15bc7b25e2
hex7885985c

2022021212 has 48 divisors (see below), whose sum is σ = 3655108800. Its totient is φ = 978432000.

The previous prime is 2022021187. The next prime is 2022021257. The reversal of 2022021212 is 2121202202.

It is a congruent number.

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, 4503164 + ... + 4503612.

It is an arithmetic number, because the mean of its divisors is an integer number (76148100).

Almost surely, 22022021212 is an apocalyptic number.

It is an amenable number.

2022021212 is a deficient number, since it is larger than the sum of its proper divisors (1633087588).

2022021212 is a wasteful number, since it uses less digits than its factorization.

2022021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2022021212 is about 44966.8901748831. The cubic root of 2022021212 is about 1264.5283460928.

Adding to 2022021212 its reverse (2121202202), we get a palindrome (4143223414).

The spelling of 2022021212 in words is "two billion, twenty-two million, twenty-one thousand, two hundred twelve".

Divisors: 1 2 4 71 101 142 157 202 284 314 404 449 628 898 1796 7171 11147 14342 15857 22294 28684 31714 31879 44588 45349 63428 63758 70493 90698 127516 140986 181396 281972 1125847 2251694 3219779 4503388 5005003 6439558 7119793 10010006 12879116 14239586 20020012 28479172 505505303 1011010606 2022021212