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2002111221210 = 235151971455167
BaseRepresentation
bin11101001000100111001…
…000001100110111011010
321002101210120111000000020
4131020213020030313122
5230300310433034320
64131431315451310
7264435116405652
oct35104710146732
97071716430006
102002111221210
117020aa653601
12284032bb6b36
13116a4ba808a9
146cc8d01b362
153712d50e940
hex1d22720cdda

2002111221210 has 64 divisors (see below), whose sum is σ = 4841880551424. Its totient is φ = 529813224000.

The previous prime is 2002111221203. The next prime is 2002111221221. The reversal of 2002111221210 is 121221112002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2002111221210.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4171047 + ... + 4626213.

It is an arithmetic number, because the mean of its divisors is an integer number (75654383616).

Almost surely, 22002111221210 is an apocalyptic number.

2002111221210 is an abundant number, since it is smaller than the sum of its proper divisors (2839769330214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2002111221210 is a wasteful number, since it uses less digits than its factorization.

2002111221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456299.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2002111221210 its reverse (121221112002), we get a palindrome (2123332333212).

The spelling of 2002111221210 in words is "two trillion, two billion, one hundred eleven million, two hundred twenty-one thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 151 302 453 755 906 971 1510 1942 2265 2913 4530 4855 5826 9710 14565 29130 146621 293242 439863 455167 733105 879726 910334 1365501 1466210 2199315 2275835 2731002 4398630 4551670 6827505 13655010 68730217 137460434 206190651 343651085 412381302 441967157 687302170 883934314 1030953255 1325901471 2061906510 2209835785 2651802942 4419671570 6629507355 13259014710 66737040707 133474081414 200211122121 333685203535 400422244242 667370407070 1001055610605 2002111221210