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211001202001 = 1391627393283
BaseRepresentation
bin1100010010000010100…
…1101101010101010001
3202011122000222122120101
43010200221231111101
511424112301431001
6240533240012401
721146543424142
oct3044051552521
9664560878511
10211001202001
1181537750087
1234a87a61101
1316b88577965
14a2d91c5ac9
15574e19ea01
hex3120a6d551

211001202001 has 8 divisors (see below), whose sum is σ = 212534534240. Its totient is φ = 209468089152.

The previous prime is 211001201963. The next prime is 211001202007. The reversal of 211001202001 is 100202100112.

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 211001202001 - 211 = 211001199953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211001202007) 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, 2215306 + ... + 2308588.

It is an arithmetic number, because the mean of its divisors is an integer number (26566816780).

Almost surely, 2211001202001 is an apocalyptic number.

It is an amenable number.

211001202001 is a deficient number, since it is larger than the sum of its proper divisors (1533332239).

211001202001 is a wasteful number, since it uses less digits than its factorization.

211001202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109695.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 211001202001 its reverse (100202100112), we get a palindrome (311203302113).

The spelling of 211001202001 in words is "two hundred eleven billion, one million, two hundred two thousand, one".

Divisors: 1 139 16273 93283 2261947 12966337 1517994259 211001202001