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211212000000211 = 759350882197061
BaseRepresentation
bin110000000001100010100000…
…001110110111100011010011
31000200211200002102200121000111
4300001202200032313203103
5210140444134000001321
62025113241524502151
762326364154002410
oct6001424016674323
91020750072617014
10211212000000211
1161331562795201
121b83237354a957
1390b128ab66a32
143a22a02c99107
15196419743d5e1
hexc018a03b78d3

211212000000211 has 8 divisors (see below), whose sum is σ = 241792200438624. Its totient is φ = 180733563957120.

The previous prime is 211212000000167. The next prime is 211212000000241. The reversal of 211212000000211 is 112000000212112.

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 211212000000211 - 227 = 211211865782483 is a prime.

It is a super-2 number, since 2×2112120000002112 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211212000000191 and 211212000000200.

It is not an unprimeable number, because it can be changed into a prime (211212000000241) 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, 25441094380 + ... + 25441102681.

It is an arithmetic number, because the mean of its divisors is an integer number (30224025054828).

Almost surely, 2211212000000211 is an apocalyptic number.

211212000000211 is a deficient number, since it is larger than the sum of its proper divisors (30580200438413).

211212000000211 is an equidigital number, since it uses as much as digits as its factorization.

211212000000211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50882197661.

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

Adding to 211212000000211 its reverse (112000000212112), we get a palindrome (323212000212323).

The spelling of 211212000000211 in words is "two hundred eleven trillion, two hundred twelve billion, two hundred eleven", and thus it is an aban number.

Divisors: 1 7 593 4151 50882197061 356175379427 30173142857173 211212000000211