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30222021222 = 2321679001179
BaseRepresentation
bin11100001001010111…
…110111001001100110
32220000020001202020100
4130021113313021212
5443343314134342
621514522444530
72116633641021
oct341127671146
986006052210
1030222021222
11118a95a7948
125a35363746
132b0838c7c3
141669b201b8
15bbd382e4c
hex7095f7266

30222021222 has 12 divisors (see below), whose sum is σ = 65481046020. Its totient is φ = 10074007068.

The previous prime is 30222021211. The next prime is 30222021287. The reversal of 30222021222 is 22212022203.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1679001179 = 30222021222 / (3 + 0 + 2 + 2 + 2 + 0 + 2 + 1 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 30222021195 and 30222021204.

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 5 ways as a sum of consecutive naturals, for example, 839500572 + ... + 839500607.

It is an arithmetic number, because the mean of its divisors is an integer number (5456753835).

Almost surely, 230222021222 is an apocalyptic number.

30222021222 is an abundant number, since it is smaller than the sum of its proper divisors (35259024798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30222021222 is a wasteful number, since it uses less digits than its factorization.

30222021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679001187 (or 1679001184 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 30222021222 its reverse (22212022203), we get a palindrome (52434043425).

The spelling of 30222021222 in words is "thirty billion, two hundred twenty-two million, twenty-one thousand, two hundred twenty-two".

Divisors: 1 2 3 6 9 18 1679001179 3358002358 5037003537 10074007074 15111010611 30222021222