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2011200221001 = 31759668394889
BaseRepresentation
bin11101010001000100110…
…111111110111101001001
321010021021000001000210010
4131101010313332331021
5230422414224033001
64135533240342133
7265206262545426
oct35210467767511
97107230030703
102011200221001
11705a44102684
1228594aa74949
13117869ac278a
146d4b219cd4d
15374b141b8d6
hex1d444dfef49

2011200221001 has 16 divisors (see below), whose sum is σ = 2887465924800. Its totient is φ = 1240540912128.

The previous prime is 2011200220979. The next prime is 2011200221027. The reversal of 2011200221001 is 1001220021102.

It is not a de Polignac number, because 2011200221001 - 25 = 2011200220969 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2011200221071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334194436 + ... + 334200453.

It is an arithmetic number, because the mean of its divisors is an integer number (180466620300).

Almost surely, 22011200221001 is an apocalyptic number.

It is an amenable number.

2011200221001 is a deficient number, since it is larger than the sum of its proper divisors (876265703799).

2011200221001 is a wasteful number, since it uses less digits than its factorization.

2011200221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668394968.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2011200221001 its reverse (1001220021102), we get a palindrome (3012420242103).

The spelling of 2011200221001 in words is "two trillion, eleven billion, two hundred million, two hundred twenty-one thousand, one".

Divisors: 1 3 17 51 59 177 1003 3009 668394889 2005184667 11362713113 34088139339 39435298451 118305895353 670400073667 2011200221001