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122010220001 = 613535666197
BaseRepresentation
bin111000110100001100…
…0000011010111100001
3102122221002202100221002
41301220120003113201
53444334104020001
6132014542241345
711546345521055
oct1615030032741
9378832670832
10122010220001
114782065216a
121b790b86255
13b6757cc467
145c96301c65
1532916d646b
hex1c686035e1

122010220001 has 8 divisors (see below), whose sum is σ = 124361713704. Its totient is φ = 119670059520.

The previous prime is 122010219973. The next prime is 122010220009. The reversal of 122010220001 is 100022010221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1895296225 + 120114923776 = 43535^2 + 346576^2 .

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 122010220001 - 234 = 104830350817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122010220009) 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, 2811566 + ... + 2854631.

It is an arithmetic number, because the mean of its divisors is an integer number (15545214213).

Almost surely, 2122010220001 is an apocalyptic number.

It is an amenable number.

122010220001 is a deficient number, since it is larger than the sum of its proper divisors (2351493703).

122010220001 is an equidigital number, since it uses as much as digits as its factorization.

122010220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5666611.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 122010220001 its reverse (100022010221), we get a palindrome (222032230222).

The spelling of 122010220001 in words is "one hundred twenty-two billion, ten million, two hundred twenty thousand, one".

Divisors: 1 61 353 21533 5666197 345638017 2000167541 122010220001