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30220122121 = 713731512119
BaseRepresentation
bin11100001001010000…
…100111100000001001
32220000002111021011021
4130021100213200021
5443342322401441
621514414032441
72116611541210
oct341120474011
986002437137
1030220122121
11118a8520042
125a347a8721
132b07b76287
141669788077
15bbd10a3d1
hex709427809

30220122121 has 8 divisors (see below), whose sum is σ = 34789380480. Its totient is φ = 25713888288.

The previous prime is 30220122113. The next prime is 30220122139. The reversal of 30220122121 is 12122102203.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30220122121 - 23 = 30220122113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30220122095 and 30220122104.

It is not an unprimeable number, because it can be changed into a prime (30220162121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15755101 + ... + 15757018.

It is an arithmetic number, because the mean of its divisors is an integer number (4348672560).

Almost surely, 230220122121 is an apocalyptic number.

It is an amenable number.

30220122121 is a deficient number, since it is larger than the sum of its proper divisors (4569258359).

30220122121 is a wasteful number, since it uses less digits than its factorization.

30220122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31512263.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 30220122121 its reverse (12122102203), we get a palindrome (42342224324).

The spelling of 30220122121 in words is "thirty billion, two hundred twenty million, one hundred twenty-two thousand, one hundred twenty-one".

Divisors: 1 7 137 959 31512119 220584833 4317160303 30220122121