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122220012222222 = 2320370002037037
BaseRepresentation
bin11011110010100010010000…
…011010011011011100001110
3121000202010012210102210101120
4123302202100122123130032
5112004423041112102342
61111535033135221410
734513050560546355
oct3362422032333416
9530663183383346
10122220012222222
1135a412416a2a22
121185b082977866
1353273b4077005
1422276a178899c
15e1e352939aec
hex6f289069b70e

122220012222222 has 8 divisors (see below), whose sum is σ = 244440024444456. Its totient is φ = 40740004074072.

The previous prime is 122220012222157. The next prime is 122220012222223. The reversal of 122220012222222 is 222222210022221.

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

122220012222222 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 122220012222192 and 122220012222201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122220012222223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10185001018513 + ... + 10185001018524.

It is an arithmetic number, because the mean of its divisors is an integer number (30555003055557).

Almost surely, 2122220012222222 is an apocalyptic number.

122220012222222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

122220012222222 is a wasteful number, since it uses less digits than its factorization.

122220012222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20370002037042.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 122220012222222 its reverse (222222210022221), we get a palindrome (344442222244443).

The spelling of 122220012222222 in words is "one hundred twenty-two trillion, two hundred twenty billion, twelve million, two hundred twenty-two thousand, two hundred twenty-two".

Divisors: 1 2 3 6 20370002037037 40740004074074 61110006111111 122220012222222