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20201212201 = 127267759419
BaseRepresentation
bin10010110100000101…
…100000100100101001
31221010212010220111111
4102310011200210221
5312333002242301
613140314030321
71313414320252
oct226405404451
957125126444
1020201212201
11862706a7a5
123ab94183a1
131b9c297901
14d98d01b29
157d3764551
hex4b4160929

20201212201 has 8 divisors (see below), whose sum is σ = 20368225280. Its totient is φ = 20034323568.

The previous prime is 20201212189. The next prime is 20201212211. The reversal of 20201212201 is 10221210202.

It is a happy number.

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 20201212201 - 25 = 20201212169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20201212211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310270 + ... + 369688.

It is an arithmetic number, because the mean of its divisors is an integer number (2546028160).

Almost surely, 220201212201 is an apocalyptic number.

It is an amenable number.

20201212201 is a deficient number, since it is larger than the sum of its proper divisors (167013079).

20201212201 is a wasteful number, since it uses less digits than its factorization.

20201212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62223.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20201212201 its reverse (10221210202), we get a palindrome (30422422403).

The spelling of 20201212201 in words is "twenty billion, two hundred one million, two hundred twelve thousand, two hundred one".

Divisors: 1 127 2677 59419 339979 7546213 159064663 20201212201