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2120223210001 = 131761157274921
BaseRepresentation
bin11110110110100111001…
…001101011101000010001
321111200200000000201000121
4132312213021223220101
5234214204120210001
64302003405350241
7306116051633341
oct36664711535021
97450600021017
102120223210001
117481aa800986
122a2ab6568381
13124c22a71260
14748956dad21
153a2428746a1
hex1eda726ba11

2120223210001 has 16 divisors (see below), whose sum is σ = 2457263381328. Its totient is φ = 1811807078400.

The previous prime is 2120223209983. The next prime is 2120223210097. The reversal of 2120223210001 is 1000123220212.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1381980625 + 2118841229376 = 37175^2 + 1455624^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120223210001 - 213 = 2120223201809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120223240001) 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, 78623980 + ... + 78650941.

It is an arithmetic number, because the mean of its divisors is an integer number (153578961333).

Almost surely, 22120223210001 is an apocalyptic number.

It is an amenable number.

2120223210001 is a deficient number, since it is larger than the sum of its proper divisors (337040171327).

2120223210001 is a wasteful number, since it uses less digits than its factorization.

2120223210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157275012.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2120223210001 its reverse (1000123220212), we get a palindrome (3120346430213).

The spelling of 2120223210001 in words is "two trillion, one hundred twenty billion, two hundred twenty-three million, two hundred ten thousand, one".

Divisors: 1 13 17 61 221 793 1037 13481 157274921 2044573973 2673673657 9593770181 34757757541 124719012353 163094093077 2120223210001