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2221021111002 = 238311497387917
BaseRepresentation
bin100000010100011111001…
…011001010001011011010
321212022211210001121200020
4200110133023022023122
5242342122401023002
64420153434251310
7316314654644001
oct40243713121332
97768753047606
102221021111002
11786a255738a1
122ba547586b36
1313159797a365
14796d86dbc38
153cb91b6e2bc
hex2051f2ca2da

2221021111002 has 32 divisors (see below), whose sum is σ = 4495963413312. Its totient is φ = 731355103104.

The previous prime is 2221021110991. The next prime is 2221021111019. The reversal of 2221021111002 is 2001111201222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5531548 + ... + 5919464.

It is an arithmetic number, because the mean of its divisors is an integer number (140498856666).

Almost surely, 22221021111002 is an apocalyptic number.

2221021111002 is an abundant number, since it is smaller than the sum of its proper divisors (2274942302310).

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

2221021111002 is a wasteful number, since it uses less digits than its factorization.

2221021111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399502.

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

Adding to 2221021111002 its reverse (2001111201222), we get a palindrome (4222132312224).

The spelling of 2221021111002 in words is "two trillion, two hundred twenty-one billion, twenty-one million, one hundred eleven thousand, two".

Divisors: 1 2 3 6 83 166 249 498 11497 22994 34491 68982 387917 775834 954251 1163751 1908502 2327502 2862753 5725506 32197111 64394222 96591333 193182666 4459881749 8919763498 13379645247 26759290494 370170185167 740340370334 1110510555501 2221021111002