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201212220201 = 3173945337651
BaseRepresentation
bin1011101101100100101…
…1101101001100101001
3201020100211021211222220
42323121023231030221
511244040312021301
6232234032104253
720352140436456
oct2733113551451
9636324254886
10201212220201
1178374064183
1232bb5695089
1315c88501935
149a4b0b282d
155379ac5936
hex2ed92ed329

201212220201 has 8 divisors (see below), whose sum is σ = 284064310944. Its totient is φ = 126250804800.

The previous prime is 201212220161. The next prime is 201212220217. The reversal of 201212220201 is 102022212102.

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

It is not a de Polignac number, because 201212220201 - 26 = 201212220137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201212221201) 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, 1972668775 + ... + 1972668876.

It is an arithmetic number, because the mean of its divisors is an integer number (35508038868).

Almost surely, 2201212220201 is an apocalyptic number.

It is an amenable number.

201212220201 is a deficient number, since it is larger than the sum of its proper divisors (82852090743).

201212220201 is a wasteful number, since it uses less digits than its factorization.

201212220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3945337671.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 201212220201 its reverse (102022212102), we get a palindrome (303234432303).

The spelling of 201212220201 in words is "two hundred one billion, two hundred twelve million, two hundred twenty thousand, two hundred one".

Divisors: 1 3 17 51 3945337651 11836012953 67070740067 201212220201