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22212112430 = 2513927495813
BaseRepresentation
bin10100101011111100…
…011111000000101110
32010100000000020000202
4110223330133000232
5330442300044210
614112030353502
71414302561164
oct245374370056
963300006022
1022212112430
119469181912
12437a95b892
13212ca8a4c1
141109dd7234
158a007b9a5
hex52bf1f02e

22212112430 has 32 divisors (see below), whose sum is σ = 40291020000. Its totient is φ = 8816199552.

The previous prime is 22212112409. The next prime is 22212112441. The reversal of 22212112430 is 3421121222.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3818204 + ... + 3824016.

It is an arithmetic number, because the mean of its divisors is an integer number (1259094375).

Almost surely, 222212112430 is an apocalyptic number.

22212112430 is a deficient number, since it is larger than the sum of its proper divisors (18078907570).

22212112430 is a wasteful number, since it uses less digits than its factorization.

22212112430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8708.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 22212112430 its reverse (3421121222), we get a palindrome (25633233652).

The spelling of 22212112430 in words is "twenty-two billion, two hundred twelve million, one hundred twelve thousand, four hundred thirty".

Divisors: 1 2 5 10 139 278 695 1390 2749 5498 5813 11626 13745 27490 29065 58130 382111 764222 808007 1616014 1910555 3821110 4040035 8080070 15979937 31959874 79899685 159799370 2221211243 4442422486 11106056215 22212112430