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12220100012201 = 15861777041553
BaseRepresentation
bin1011000111010011011010…
…1110000110100010101001
31121021020012210002012111012
42301310312232012202221
53100203231100342301
641553500401113305
72400605320156124
oct261646656064251
947236183065435
1012220100012201
113991573974734
121454406928835
136a84730328b3
1430365537b3bb
15162d15cb8ebb
hexb1d36b868a9

12220100012201 has 4 divisors (see below), whose sum is σ = 12220177212372. Its totient is φ = 12220022812032.

The previous prime is 12220100012161. The next prime is 12220100012221. The reversal of 12220100012201 is 10221000102221.

12220100012201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6326256192025 + 5893843820176 = 2515205^2 + 2427724^2 .

It is a cyclic number.

It is not a de Polignac number, because 12220100012201 - 218 = 12220099750057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12220100012221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38362160 + ... + 38679393.

It is an arithmetic number, because the mean of its divisors is an integer number (3055044303093).

Almost surely, 212220100012201 is an apocalyptic number.

It is an amenable number.

12220100012201 is a deficient number, since it is larger than the sum of its proper divisors (77200171).

12220100012201 is an equidigital number, since it uses as much as digits as its factorization.

12220100012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77200170.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12220100012201 its reverse (10221000102221), we get a palindrome (22441100114422).

The spelling of 12220100012201 in words is "twelve trillion, two hundred twenty billion, one hundred million, twelve thousand, two hundred one".

Divisors: 1 158617 77041553 12220100012201