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2211223201012 = 227260873302723
BaseRepresentation
bin100000001011010111001…
…011000110010011110100
321211101112221120012221001
4200023113023012103310
5242212041114413022
64411453311133044
7315520113042520
oct40132713062364
97741487505831
102211223201012
1178285793a021
122b8672214184
13130695ac9597
1479049342d80
153c7bb8ceb27
hex202d72c64f4

2211223201012 has 24 divisors (see below), whose sum is σ = 4422477963456. Its totient is φ = 947660323008.

The previous prime is 2211223201009. The next prime is 2211223201043. The reversal of 2211223201012 is 2101023221122.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 7153083 + ... + 7455805.

It is an arithmetic number, because the mean of its divisors is an integer number (184269915144).

Almost surely, 22211223201012 is an apocalyptic number.

It is an amenable number.

2211223201012 is an abundant number, since it is smaller than the sum of its proper divisors (2211254762444).

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

2211223201012 is a wasteful number, since it uses less digits than its factorization.

2211223201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563607 (or 563605 counting only the distinct ones).

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

Adding to 2211223201012 its reverse (2101023221122), we get a palindrome (4312246422134).

The spelling of 2211223201012 in words is "two trillion, two hundred eleven billion, two hundred twenty-three million, two hundred one thousand, twelve".

Divisors: 1 2 4 7 14 28 260873 302723 521746 605446 1043492 1210892 1826111 2119061 3652222 4238122 7304444 8476244 78972257179 157944514358 315889028716 552805800253 1105611600506 2211223201012