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122220202022201 = 318152097376069
BaseRepresentation
bin11011110010100010011011…
…101110011101010100111001
3121000202010201000120122000102
4123302202123232131110321
5112004423433204202301
61111535104035245145
734513055354042153
oct3362423356352471
9530663630518012
10122220202022201
1135a41329849508
121185b1164497b5
13532741449c6aa
1422276bca73ad3
15e1e36442bb6b
hex6f289bb9d539

122220202022201 has 8 divisors (see below), whose sum is σ = 122282111195400. Its totient is φ = 122158307617920.

The previous prime is 122220202022189. The next prime is 122220202022209. The reversal of 122220202022201 is 102220202022221.

It can be written as a sum of positive squares in 4 ways, for example, as 24618665358400 + 97601536663801 = 4961720^2 + 9879349^2 .

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 122220202022201 - 226 = 122220134913337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122220202022209) 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, 12881795 + ... + 20257863.

It is an arithmetic number, because the mean of its divisors is an integer number (15285263899425).

Almost surely, 2122220202022201 is an apocalyptic number.

It is an amenable number.

122220202022201 is a deficient number, since it is larger than the sum of its proper divisors (61909173199).

122220202022201 is an equidigital number, since it uses as much as digits as its factorization.

122220202022201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7384459.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 122220202022201 its sum of digits (20), we get a palindrome (122220202022221).

Adding to 122220202022201 its reverse (102220202022221), we get a palindrome (224440404044422).

The spelling of 122220202022201 in words is "one hundred twenty-two trillion, two hundred twenty billion, two hundred two million, twenty-two thousand, two hundred one".

Divisors: 1 3181 5209 7376069 16569829 23463275489 38421943421 122220202022201