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2112122200111 = 71127430158443
BaseRepresentation
bin11110101111000100010…
…010110010000000101111
321110220202102112202121021
4132233010102302000233
5234101111240400421
64254143500515011
7305411233323610
oct36570422620057
97426672482537
102112122200111
11744822a12290
122a141554ba67
13124231622a91
147432785bc07
1539e1b575341
hex1ebc44b202f

2112122200111 has 8 divisors (see below), whose sum is σ = 2633295210624. Its totient is φ = 1645809506520.

The previous prime is 2112122200093. The next prime is 2112122200117. The reversal of 2112122200111 is 1110022212112.

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 2112122200111 - 213 = 2112122191919 is a prime.

It is a super-2 number, since 2×21121222001112 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112122200117) 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, 13715079145 + ... + 13715079298.

It is an arithmetic number, because the mean of its divisors is an integer number (329161901328).

Almost surely, 22112122200111 is an apocalyptic number.

2112122200111 is a deficient number, since it is larger than the sum of its proper divisors (521173010513).

2112122200111 is a wasteful number, since it uses less digits than its factorization.

2112122200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27430158461.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2112122200111 its reverse (1110022212112), we get a palindrome (3222144412223).

The spelling of 2112122200111 in words is "two trillion, one hundred twelve billion, one hundred twenty-two million, two hundred thousand, one hundred eleven".

Divisors: 1 7 11 77 27430158443 192011109101 301731742873 2112122200111