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222212121212222 = 21223144376292661
BaseRepresentation
bin110010100001100111001010…
…100011001011010100111110
31002010210021022210102110221122
4302201213022203023110332
5213111210411012242342
62104334501134230542
764543203341365601
oct6241471243132476
91063707283373848
10222212121212222
11648926a4403529
1220b0a245955452
1396cb68941a56b
143cc31a4584338
151aa53a958c4d2
hexca19ca8cb53e

222212121212222 has 16 divisors (see below), whose sum is σ = 333613882926432. Its totient is φ = 111007506186720.

The previous prime is 222212121212201. The next prime is 222212121212227.

222212121212222 is nontrivially palindromic in base 10.

222212121212222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 222212121212191 and 222212121212200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222212121212227) 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, 32166572 + ... + 38459232.

It is an arithmetic number, because the mean of its divisors is an integer number (20850867682902).

Almost surely, 2222212121212222 is an apocalyptic number.

222212121212222 is a deficient number, since it is larger than the sum of its proper divisors (111401761714210).

222212121212222 is a wasteful number, since it uses less digits than its factorization.

222212121212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6308323.

The product of its digits is 2048, while the sum is 26.

The spelling of 222212121212222 in words is "two hundred twenty-two trillion, two hundred twelve billion, one hundred twenty-one million, two hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 1223 2446 14437 28874 6292661 12585322 17656451 35312902 7695924403 15391848806 90847146857 181694293714 111106060606111 222212121212222