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2212120222211 = 81791006926861
BaseRepresentation
bin100000001100001100101…
…000111101101000000011
321211110212110110121200102
4200030030220331220003
5242220410234102321
64412122313313015
7315551254433624
oct40141450755003
97743773417612
102212120222211
11783178217359
122b888270576b
131307a98bc163
14790d2525a4b
153c82051dc0b
hex2030ca3da03

2212120222211 has 8 divisors (see below), whose sum is σ = 2212692781200. Its totient is φ = 2211547753440.

The previous prime is 2212120222187. The next prime is 2212120222267. The reversal of 2212120222211 is 1122220212122.

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 2212120222211 - 222 = 2212116027907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212120222811) 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, 82340921 + ... + 82367781.

It is an arithmetic number, because the mean of its divisors is an integer number (276586597650).

Almost surely, 22212120222211 is an apocalyptic number.

2212120222211 is a deficient number, since it is larger than the sum of its proper divisors (572558989).

2212120222211 is a wasteful number, since it uses less digits than its factorization.

2212120222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45109.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2212120222211 its reverse (1122220212122), we get a palindrome (3334340434333).

The spelling of 2212120222211 in words is "two trillion, two hundred twelve billion, one hundred twenty million, two hundred twenty-two thousand, two hundred eleven".

Divisors: 1 8179 10069 26861 82354351 219696119 270463409 2212120222211