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2212222220211 = 34317149009459
BaseRepresentation
bin100000001100010010101…
…110000011011110110011
321211111010120101122122010
4200030102232003132303
5242221112342021321
64412140355414003
7315553633420113
oct40142256033663
97744116348563
102212222220211
1178321a852a23
122b88b08b4303
131307c4a821c3
1479101cb7043
153c82946a676
hex20312b837b3

2212222220211 has 8 divisors (see below), whose sum is σ = 3018225664960. Its totient is φ = 1440516794472.

The previous prime is 2212222220209. The next prime is 2212222220261. The reversal of 2212222220211 is 1120222222122.

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

It is not a de Polignac number, because 2212222220211 - 21 = 2212222220209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212222220261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8574504601 + ... + 8574504858.

It is an arithmetic number, because the mean of its divisors is an integer number (377278208120).

Almost surely, 22212222220211 is an apocalyptic number.

2212222220211 is a deficient number, since it is larger than the sum of its proper divisors (806003444749).

2212222220211 is a wasteful number, since it uses less digits than its factorization.

2212222220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17149009505.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 2212222220211 its reverse (1120222222122), we get a palindrome (3332444442333).

The spelling of 2212222220211 in words is "two trillion, two hundred twelve billion, two hundred twenty-two million, two hundred twenty thousand, two hundred eleven".

Divisors: 1 3 43 129 17149009459 51447028377 737407406737 2212222220211