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22212021230 = 257317314589
BaseRepresentation
bin10100101011111100…
…001000101111101110
32010022222211120220222
4110223330020233232
5330442234134410
614112024411342
71414302031250
oct245374105756
963288746828
1022212021230
11946911a343
12437a916b52
13212ca57b39
141109db1cd0
158a005e955
hex52bf08bee

22212021230 has 16 divisors (see below), whose sum is σ = 45693300960. Its totient is φ = 7615550112.

The previous prime is 22212021229. The next prime is 22212021239. The reversal of 22212021230 is 3212021222.

It is a junction number, because it is equal to n+sod(n) for n = 22212021199 and 22212021208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212021239) 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, 158657225 + ... + 158657364.

It is an arithmetic number, because the mean of its divisors is an integer number (2855831310).

Almost surely, 222212021230 is an apocalyptic number.

22212021230 is an abundant number, since it is smaller than the sum of its proper divisors (23481279730).

22212021230 is a wasteful number, since it uses less digits than its factorization.

22212021230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317314603.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22212021230 its reverse (3212021222), we get a palindrome (25424042452).

The spelling of 22212021230 in words is "twenty-two billion, two hundred twelve million, twenty-one thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 317314589 634629178 1586572945 2221202123 3173145890 4442404246 11106010615 22212021230