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2101201220011 = 8219901258491
BaseRepresentation
bin11110100100111001010…
…110100011000110101011
321102212120022210111021211
4132210321112203012223
5233411230003020021
64245140054213551
7304543503452515
oct36447126430653
97385508714254
102101201220011
117401293462a3
1229b2880542b7
131231b0ba468a
14739ad27abb5
15399cc8e43e1
hex1e9395a31ab

2101201220011 has 8 divisors (see below), whose sum is σ = 2103981158448. Its totient is φ = 2098421820000.

The previous prime is 2101201219981. The next prime is 2101201220033. The reversal of 2101201220011 is 1100221021012.

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 2101201220011 - 29 = 2101201219499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2101201219973 and 2101201220000.

It is not an unprimeable number, because it can be changed into a prime (2101201220611) 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, 7999476 + ... + 8257966.

It is an arithmetic number, because the mean of its divisors is an integer number (262997644806).

Almost surely, 22101201220011 is an apocalyptic number.

2101201220011 is a deficient number, since it is larger than the sum of its proper divisors (2779938437).

2101201220011 is an equidigital number, since it uses as much as digits as its factorization.

2101201220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269213.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2101201220011 its reverse (1100221021012), we get a palindrome (3201422241023).

The spelling of 2101201220011 in words is "two trillion, one hundred one billion, two hundred one million, two hundred twenty thousand, eleven".

Divisors: 1 821 9901 258491 8128721 212221111 2559319391 2101201220011