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2220012132121 = 715591871108727
BaseRepresentation
bin100000010011100011000…
…010001101011100011001
321212020020110111011212001
4200103203002031130121
5242333041101211441
64415505352321001
7316250653525420
oct40234302153431
97766213434761
102220012132121
11786557a78053
122ba3056a3161
13131466918334
14796406d42b7
153cb332b7731
hex204e308d719

2220012132121 has 16 divisors (see below), whose sum is σ = 2540164423680. Its totient is φ = 1900613111760.

The previous prime is 2220012132097. The next prime is 2220012132157. The reversal of 2220012132121 is 1212312100222.

It is a cyclic number.

It is not a de Polignac number, because 2220012132121 - 217 = 2220012001049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220012132161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20363860 + ... + 20472586.

It is an arithmetic number, because the mean of its divisors is an integer number (158760276480).

Almost surely, 22220012132121 is an apocalyptic number.

It is an amenable number.

2220012132121 is a deficient number, since it is larger than the sum of its proper divisors (320152291559).

2220012132121 is a wasteful number, since it uses less digits than its factorization.

2220012132121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112164.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2220012132121 its reverse (1212312100222), we get a palindrome (3432324232343).

The spelling of 2220012132121 in words is "two trillion, two hundred twenty billion, twelve million, one hundred thirty-two thousand, one hundred twenty-one".

Divisors: 1 7 1559 1871 10913 13097 108727 761089 2916889 20418223 169505393 203428217 1186537751 1423997519 317144590303 2220012132121