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2122012111222 = 21762360205757
BaseRepresentation
bin11110111000010001110…
…001110011000101110110
321111212021200011022011101
4132320101301303011312
5234231340100024342
64302501112000314
7306211303223653
oct36702161630566
97455250138141
102122012111222
11748a38574943
122a331569009a
131251495765a3
14749c5124c2a
153a2e99393b7
hex1ee11c73176

2122012111222 has 8 divisors (see below), whose sum is σ = 3183198836976. Its totient is φ = 1060945832232.

The previous prime is 2122012111211. The next prime is 2122012111223. The reversal of 2122012111222 is 2221112102212.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2122012111222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122012111223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30067633 + ... + 30138124.

It is an arithmetic number, because the mean of its divisors is an integer number (397899854622).

Almost surely, 22122012111222 is an apocalyptic number.

2122012111222 is a deficient number, since it is larger than the sum of its proper divisors (1061186725754).

2122012111222 is a wasteful number, since it uses less digits than its factorization.

2122012111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60223382.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2122012111222 its reverse (2221112102212), we get a palindrome (4343124213434).

The spelling of 2122012111222 in words is "two trillion, one hundred twenty-two billion, twelve million, one hundred eleven thousand, two hundred twenty-two".

Divisors: 1 2 17623 35246 60205757 120411514 1061006055611 2122012111222