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2022011212 = 2213172287343
BaseRepresentation
bin111100010000101…
…0111000101001100
312012220202210221011
41320201113011030
513120113324322
6532350415004
7101051545264
oct17041270514
95186683834
102022011212
11948410a51
12485201464
13262bb3050
141527887a4
15bc7ae677
hex7885714c

2022011212 has 24 divisors (see below), whose sum is σ = 4034874816. Its totient is φ = 878339328.

The previous prime is 2022011191. The next prime is 2022011219. The reversal of 2022011212 is 2121102202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 2022011192 and 2022011201.

It is not an unprimeable number, because it can be changed into a prime (2022011219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1142788 + ... + 1144555.

It is an arithmetic number, because the mean of its divisors is an integer number (168119784).

Almost surely, 22022011212 is an apocalyptic number.

It is an amenable number.

2022011212 is a deficient number, since it is larger than the sum of its proper divisors (2012863604).

2022011212 is a wasteful number, since it uses less digits than its factorization.

2022011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2287377 (or 2287375 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2022011212 is about 44966.7789818217. The cubic root of 2022011212 is about 1264.5262614948.

Adding to 2022011212 its reverse (2121102202), we get a palindrome (4143113414).

The spelling of 2022011212 in words is "two billion, twenty-two million, eleven thousand, two hundred twelve".

Divisors: 1 2 4 13 17 26 34 52 68 221 442 884 2287343 4574686 9149372 29735459 38884831 59470918 77769662 118941836 155539324 505502803 1011005606 2022011212